pytorch-lightning

72bb751d - Fix `save_last` behavior in absence of validation (#20960)

Fix `save_last` behavior in absence of validation (#20960) * Implement test to reproduce the issue * Implement fix * chlog --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Jirka Borovec <6035284+Borda@users.noreply.github.com> Co-authored-by: Jirka B <j.borovec+github@gmail.com>