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Python: fix(core): preserve checkpoint identity across filesystem aliases - #9466

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Yufeng He (he-yufeng) wants to merge 8 commits into

microsoft:mainfrom

he-yufeng:fix/file-checkpoint-case-collision

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Python: fix(core): preserve checkpoint identity across filesystem aliases#9466
Yufeng He (he-yufeng) wants to merge 8 commits into
microsoft:mainfrom
he-yufeng:fix/file-checkpoint-case-collision

Commits on Oct 16, 2026
- Python: fix(core): reject checkpoint IDs that collide by letter case on save
  Yufeng He (he-yufeng)
  committed
  78ddc7d
Commits on Oct 17, 2026
- Python: fix(core): harden case-collision guard against path canonicalization
  Yufeng He (he-yufeng)
  committed
  183ae7b
- Python: fix(core): fold Unicode normalization into the checkpoint collision guard
  Yufeng He (he-yufeng)
  committed
  cddc816
Commits on Oct 23, 2026
- Python: fix(core): deny case-fold aliases in load/delete and serialize variant saves
  Yufeng He (he-yufeng)
  committed
  76b34fa
- Merge remote-tracking branch 'origin/main' into fix/file-checkpoint-case-collision
  Yufeng He (he-yufeng)
  committed
  e6f935d
Commits on Oct 27, 2026
- Merge remote-tracking branch 'origin/main' into HEAD
  Yufeng He (he-yufeng)
  committed
  45d1241
- Python: fix(core): preserve checkpoint identity across filesystem folds
  Yufeng He (he-yufeng)
  committed
  8126b01
Commits on Oct 31, 2026
- fix(core): verify checkpoint identity for path-bearing alias IDs
  Yufeng He (he-yufeng)
  committed
  80705da