branch-4.0: [fix](storage-engine) _clean_unused_rowset_metas should skip rowsets in _unused_rowsets map #59390 #59418
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…in _unused_rowsets map (#59390) ### What problem does this PR solve? `_clean_unused_rowset_metas` could incorrectly remove rowset metas (and its delete_bitmap) that are still tracked in the `_unused_rowsets` map, which holds rowsets pending deletion. The fix adds a check to skip these rowsets during cleanup, preventing premature removal of `_unused_rowsets`. Otherwise, if query a mow table with rowsets in `_unused_rowsets` map, and `_clean_unused_rowset_metas` delete delete_bitmap of these rowset, will get duplicated keys. ### Release note None ### Check List (For Author) - Test <!-- At least one of them must be included. --> - [ ] Regression test - [ ] Unit Test - [ ] Manual test (add detailed scripts or steps below) - [ ] No need to test or manual test. Explain why: - [ ] This is a refactor/code format and no logic has been changed. - [ ] Previous test can cover this change. - [ ] No code files have been changed. - [ ] Other reason <!-- Add your reason? --> - Behavior changed: - [ ] No. - [ ] Yes. <!-- Explain the behavior change --> - Does this need documentation? - [ ] No. - [ ] Yes. <!-- Add document PR link here. eg: apache/doris-website#1214 --> ### Check List (For Reviewer who merge this PR) - [ ] Confirm the release note - [ ] Confirm test cases - [ ] Confirm document - [ ] Add branch pick label <!-- Add branch pick label that this PR should merge into -->
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Cherry-picked from #59390