Fix possible logical error "Cannot cancel. Either no query sent or already cancelled"

[Avogar]

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Closes #49102. Was introduced in #47229

[SmitaRKulkarni]

LGTM

[tavplubix]

ClickHouse build check - msan build was broken in master
Compatibility check (amd64) — glibc check failed - was broken in master
Stateless tests (debug) - 01442_merge_detach_attach_long and 00155_long_merges were broken in master
Stateless tests (debug, s3 storage) [6/6] - #49185
Stateless tests (release, analyzer) - check with analyzer is broken in master
Stress test (asan) - #49407
Upgrade check (debug) — OOM in dmesg - we don't have diagnostic tools for OOM in prev release

[robot-ch-test-poll2]

This is an automated comment for commit 2229f8c with description of existing statuses. It's updated for the latest CI running
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The overall status of the commit is 🟡 pending

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Mergeable Check	Checks if all other necessary checks are successful	🟢 success
Push to Dockerhub	The check for building and pushing the CI related docker images to docker hub	🟢 success