BUG: handle ExtensionArray in Series._flex_method with fill_value (fixes #62467)#62808

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Mayankvlog wants to merge 10 commits intopandas-dev:mainfrom

Mayankvlog:fix-flex-extarray-fill-value

Commits on Oct 22, 2025

Fix CoW replace with dict containing np.nan (GH#62787): handle invalid weakrefs when clearing referenced_blocks; add regression tests
Mayankvlog
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Add FINAL_REPORT.md: root cause, fix details, and tests summary for GH#62787 CoW replace np.nan bug
Mayankvlog
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tests: fix ruff/pre-commit issues in test_replace_cow_fix; normalize FINAL_REPORT.md line endings
Mayankvlog
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Add 100-word report for GH#62787; fix line endings via pre-commit
Mayankvlog
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CoW replace_list: robustly clean referenced_blocks by identity; avoid stale indices and dead weakrefs (GH#62787)
Mayankvlog
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Add CI_REPORT_62787.md: rationale for robustness change and CI plan
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CoW: preserve refs.referenced_blocks list identity during cleanup to avoid breaking external references (GH#62787)
Mayankvlog
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Add comprehensive tests for iloc dictionary assignment fix (GH#62723)
Mayankvlog
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Clean up test formatting: standardize quotes and remove unused imports
Mayankvlog
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Commits on Oct 23, 2025

BUG: handle ExtensionArray in Series._flex_method with fill_value (fixes #62467)
Mayankvlog
committed