Fix current epoch value override on restart

[carmocca]

What does this PR do?

Unblocks #9938 (comment)
Unblocks #12418 (comment)
Bug introduced in #8578

This is unreleased.

Does your PR introduce any breaking changes? If yes, please list them.

None

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cc @Borda @awaelchli @ananthsub @ninginthecloud @rohitgr7 @carmocca @justusschock