Github user NicoK commented on the issue:
https://github.com/apache/flink/pull/4024
Deleting a savepoint will not affect other savepoints in case you are
worried about this.
Other than that it depends on you and what you want to do with it, e.g.
keeping it in case you want to resume from it at a later point in case of
failures or so.
I did add a few notes which should make the first point clear.
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