diff --git a/extensions/mentions/src/Formatter/FormatGroupMentions.php b/extensions/mentions/src/Formatter/FormatGroupMentions.php
index e9398f58e1..b6ad163170 100644
--- a/extensions/mentions/src/Formatter/FormatGroupMentions.php
+++ b/extensions/mentions/src/Formatter/FormatGroupMentions.php
@@ -25,9 +25,13 @@ public function __construct(
     public function __invoke(Renderer $renderer, mixed $context, string $xml): string
     {
         return Utils::replaceAttributes($xml, 'GROUPMENTION', function ($attributes) use ($context) {
-            $group = ($context instanceof AbstractModel && $context->isRelation('mentionsGroups'))
-                ? $context->mentionsGroups->find($attributes['id']) // @phpstan-ignore-line
-                : Group::find($attributes['id']);
+            /** @var Group|null $group */
+            $group = match (true) {
+                $context instanceof AbstractModel && $context->isRelation('mentionsGroups') => $context->relationLoaded('mentionsGroups')
+                    ? $context->mentionsGroups->find($attributes['id']) // @phpstan-ignore-line
+                    : $context->mentionsGroups()->find($attributes['id']), // @phpstan-ignore-line
+                default => Group::query()->find($attributes['id']),
+            };
 
             if ($group) {
                 $attributes['groupname'] = $group->name_plural;
diff --git a/extensions/mentions/src/Formatter/FormatPostMentions.php b/extensions/mentions/src/Formatter/FormatPostMentions.php
index f020f7f5ff..75a20ba368 100644
--- a/extensions/mentions/src/Formatter/FormatPostMentions.php
+++ b/extensions/mentions/src/Formatter/FormatPostMentions.php
@@ -31,9 +31,13 @@ public function __construct(
     public function __invoke(Renderer $renderer, mixed $context, string $xml): string
     {
         return Utils::replaceAttributes($xml, 'POSTMENTION', function ($attributes) use ($context) {
-            $post = ($context instanceof AbstractModel && $context->isRelation('mentionsPosts'))
-                ? $context->mentionsPosts->find($attributes['id']) // @phpstan-ignore-line
-                : Post::find($attributes['id']);
+            /** @var Post|null $post */
+            $post = match (true) {
+                $context instanceof AbstractModel && $context->isRelation('mentionsPosts') => $context->relationLoaded('mentionsPosts')
+                    ? $context->mentionsPosts->find($attributes['id']) // @phpstan-ignore-line
+                    : $context->mentionsPosts()->find($attributes['id']), // @phpstan-ignore-line
+                default => Post::query()->find($attributes['id']),
+            };
 
             if ($post && $post->user) {
                 $attributes['displayname'] = $post->user->display_name;
diff --git a/extensions/mentions/src/Formatter/FormatTagMentions.php b/extensions/mentions/src/Formatter/FormatTagMentions.php
index 5a0a0f1b32..6cad73ca6c 100644
--- a/extensions/mentions/src/Formatter/FormatTagMentions.php
+++ b/extensions/mentions/src/Formatter/FormatTagMentions.php
@@ -21,9 +21,12 @@ public function __invoke(Renderer $renderer, mixed $context, string $xml, ?Reque
     {
         return Utils::replaceAttributes($xml, 'TAGMENTION', function ($attributes) use ($context) {
             /** @var Tag|null $tag */
-            $tag = ($context instanceof AbstractModel && $context->isRelation('mentionsTags'))
-                ? $context->mentionsTags->find($attributes['id']) // @phpstan-ignore-line
-                : Tag::query()->find($attributes['id']);
+            $tag = match (true) {
+                $context instanceof AbstractModel && $context->isRelation('mentionsTags') => $context->relationLoaded('mentionsTags')
+                    ? $context->mentionsTags->find($attributes['id']) // @phpstan-ignore-line
+                    : $context->mentionsTags()->find($attributes['id']), // @phpstan-ignore-line
+                default => Tag::query()->find($attributes['id']),
+            };
 
             if ($tag) {
                 $attributes['deleted'] = false;
diff --git a/extensions/mentions/src/Formatter/FormatUserMentions.php b/extensions/mentions/src/Formatter/FormatUserMentions.php
index 74d002940f..fbbbe28f73 100644
--- a/extensions/mentions/src/Formatter/FormatUserMentions.php
+++ b/extensions/mentions/src/Formatter/FormatUserMentions.php
@@ -27,9 +27,13 @@ public function __construct(
     public function __invoke(Renderer $renderer, mixed $context, string $xml): string
     {
         return Utils::replaceAttributes($xml, 'USERMENTION', function ($attributes) use ($context) {
-            $user = ($context instanceof AbstractModel && $context->isRelation('mentionsUsers'))
-                ? $context->mentionsUsers->find($attributes['id']) // @phpstan-ignore-line
-                : User::find($attributes['id']);
+            /** @var User|null $user */
+            $user = match (true) {
+                $context instanceof AbstractModel && $context->isRelation('mentionsUsers') => $context->relationLoaded('mentionsUsers')
+                    ? $context->mentionsUsers->find($attributes['id']) // @phpstan-ignore-line
+                    : $context->mentionsUsers()->find($attributes['id']), // @phpstan-ignore-line
+                default => User::query()->find($attributes['id']),
+            };
 
             $attributes['deleted'] = false;
 
diff --git a/extensions/mentions/src/Formatter/UnparsePostMentions.php b/extensions/mentions/src/Formatter/UnparsePostMentions.php
index c0e138846d..cd5dd5c2a5 100644
--- a/extensions/mentions/src/Formatter/UnparsePostMentions.php
+++ b/extensions/mentions/src/Formatter/UnparsePostMentions.php
@@ -34,9 +34,13 @@ public function __invoke(mixed $context, string $xml): string
     protected function updatePostMentionTags(mixed $context, string $xml): string
     {
         return Utils::replaceAttributes($xml, 'POSTMENTION', function ($attributes) use ($context) {
-            $post = ($context instanceof AbstractModel && $context->isRelation('mentionsPosts'))
-                ? $context->mentionsPosts->find($attributes['id']) // @phpstan-ignore-line
-                : Post::find($attributes['id']);
+            /** @var Post|null $post */
+            $post = match (true) {
+                $context instanceof AbstractModel && $context->isRelation('mentionsPosts') => $context->relationLoaded('mentionsPosts')
+                    ? $context->mentionsPosts->find($attributes['id']) // @phpstan-ignore-line
+                    : $context->mentionsPosts()->find($attributes['id']), // @phpstan-ignore-line
+                default => Post::query()->find($attributes['id']),
+            };
 
             if ($post && $post->user) {
                 $attributes['displayname'] = $post->user->display_name;
diff --git a/extensions/mentions/src/Formatter/UnparseTagMentions.php b/extensions/mentions/src/Formatter/UnparseTagMentions.php
index 06eb0f3735..a25800c92f 100644
--- a/extensions/mentions/src/Formatter/UnparseTagMentions.php
+++ b/extensions/mentions/src/Formatter/UnparseTagMentions.php
@@ -29,9 +29,12 @@ protected function updateTagMentionTags(mixed $context, string $xml): string
     {
         return Utils::replaceAttributes($xml, 'TAGMENTION', function (array $attributes) use ($context) {
             /** @var Tag|null $tag */
-            $tag = ($context instanceof AbstractModel && $context->isRelation('mentionsTags'))
-                ? $context->mentionsTags->find($attributes['id']) // @phpstan-ignore-line
-                : Tag::query()->find($attributes['id']);
+            $tag = match (true) {
+                $context instanceof AbstractModel && $context->isRelation('mentionsTags') => $context->relationLoaded('mentionsTags')
+                    ? $context->mentionsTags->find($attributes['id']) // @phpstan-ignore-line
+                    : $context->mentionsTags()->find($attributes['id']), // @phpstan-ignore-line
+                default => Tag::query()->find($attributes['id']),
+            };
 
             if ($tag) {
                 $attributes['tagname'] = $tag->name;
diff --git a/extensions/mentions/src/Formatter/UnparseUserMentions.php b/extensions/mentions/src/Formatter/UnparseUserMentions.php
index a278166f9a..a45d8dfa2a 100644
--- a/extensions/mentions/src/Formatter/UnparseUserMentions.php
+++ b/extensions/mentions/src/Formatter/UnparseUserMentions.php
@@ -34,9 +34,13 @@ public function __invoke(mixed $context, string $xml): string
     protected function updateUserMentionTags(mixed $context, string $xml): string
     {
         return Utils::replaceAttributes($xml, 'USERMENTION', function ($attributes) use ($context) {
-            $user = ($context instanceof AbstractModel && $context->isRelation('mentionsUsers'))
-                ? $context->mentionsUsers->find($attributes['id']) // @phpstan-ignore-line
-                : User::find($attributes['id']);
+            /** @var User|null $user */
+            $user = match (true) {
+                $context instanceof AbstractModel && $context->isRelation('mentionsUsers') => $context->relationLoaded('mentionsUsers')
+                    ? $context->mentionsUsers->find($attributes['id']) // @phpstan-ignore-line
+                    : $context->mentionsUsers()->find($attributes['id']), // @phpstan-ignore-line
+                default => User::query()->find($attributes['id']),
+            };
 
             $attributes['displayname'] = $user?->display_name ?? $this->translator->trans('core.lib.username.deleted_text');