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Backport #93028 to 25.8: Fix segfault in groupConcat merge with malformed serialized state#93557

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rienath merged 1 commit into25.8from
backport/25.8/93028
Jan 8, 2026
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Backport #93028 to 25.8: Fix segfault in groupConcat merge with malformed serialized state#93557
rienath merged 1 commit into25.8from
backport/25.8/93028

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Original pull-request #93028
Cherry-pick pull-request #93556

This pull-request is a last step of an automated backporting.
Treat it as a standard pull-request: look at the checks and resolve conflicts.
Merge it only if you intend to backport changes to the target branch, otherwise just close it.

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@robot-clickhouse-ci-1 robot-clickhouse-ci-1 added pr-backport Changes, backported to release branch. Do not use manually - automated use only! pr-critical-bugfix labels Jan 7, 2026
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clickhouse-gh bot commented Jan 7, 2026

Workflow [BackportPR], commit [0a9ad73]

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rienath commented Jan 8, 2026

test_plain_rewritable_backward_compatibility is flaky on 25.8

@rienath rienath merged commit 856b718 into 25.8 Jan 8, 2026
61 of 67 checks passed
@rienath rienath deleted the backport/25.8/93028 branch January 8, 2026 10:57
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