Prevent recursive symlink creation iwhen `save_last='link'` and `save_top_k=-1`#21186

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Borda merged 7 commits intoLightning-AI:masterfrom

littlebullGit:fix/21110-model-checkpoint-symlink

Sep 10, 2025

Commits on Sep 9, 2025

Fix for issue #21110: Prevent recursive symlink creation in ModelCheckpoint
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Address PR comments: refactor test to use boring classes and clarify assertion
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