24.8 Backport of 74749 - fix reuse connections

[Enmk]

Continuation of #678

Changelog category (leave one):

• Bug Fix (user-visible misbehavior in an official stable release)

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Avoid reusing connections that had been left in the intermediate state. (ClickHouse#74749 by @azat)

Documentation entry for user-facing changes

[altinity-robot]

This is an automated comment for commit 6505945 with description of existing statuses. It's updated for the latest CI running

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