Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/2962
Thanks for changing! I just realised, however, that we already have tests
in `StateBackendTestBase` that check for restoring from wrong serialisers so we
don't actually need those.
I will also split the changes into 4 commits, you already split into
FLINK-5282 and FLINK-5283, the later commits I will split into "[FLINK-5041]
Savepoint Backwards Compatibility 1.1 -> 1.2" since these are essentially
fixups for that and are not related to FLINK-5051. The last commit will contain
the actual changes for FLINK-5051.
What do you think?
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