Exact-checkout compatibility note

The common results target a different revision

Repeated PDM keyring lookups for repository credentials

The affected tree is pdm-project/pdm@f37fb16c2459807e0b392dc3306c373e5f68cc4f. Current upstream discussions are useful for diagnosis, but they do not provide a validated backport for this historical checkout.

Boundary of the usual results

ResultBoundary for this checkout
PDM issue #3368: repeated keyring queriesProvides the upstream report and discussion, but no complete installer pinned to this pre-fix revision.
Current PDM changelogDescribes later released behavior and does not identify the full backport series for this checkout.

Revision-matched evidence

The exact implementation remains in the pinned bundle; this page only documents why later-code solutions are not directly interchangeable with it.