[Bug]: pagination countTotal not working

[JulianToledano]

Is there an existing issue for this?

• I have searched the existing issues

What happened?

While working on client system tests, I found that querying Tendermint's validator set with a limit results in an empty key and incorrect total count.

For the following query:
/cosmos/base/tendermint/v1beta1/validatorsets/1?pagination.offset=0&pagination.limit=2

It returns:

{
  "block_height" : "1",
  "validators" : [ {
    "address" : "cosmosvalcons1pasvythqmpswzxu6rgp67fjd7hk6fp4hjrlk8m",
    "pub_key" : {
      "@type" : "/cosmos.crypto.ed25519.PubKey",
      "key" : "Zn/nOlbRzWy220yImisVzrCfLg1alXGrw/WMQC5yuAE="
    },
    "voting_power" : "100",
    "proposer_priority" : "-300"
  }, {
    "address" : "cosmosvalcons1j5kt90jhm42zr58vmpwtwummhqn5p6465udjgx",
    "pub_key" : {
      "@type" : "/cosmos.crypto.ed25519.PubKey",
      "key" : "hyknvANvB0JFSlabumkB+23Sux6hE8G6Ql7N5xxZ04E="
    },
    "voting_power" : "100",
    "proposer_priority" : "100"
  } ],
  "pagination" : {
    "next_key" : null,
    "total" : "4"
  }
}

Cosmos SDK Version

main

How to reproduce?

No response