Allow MinimizerScheduler to not cleanup the metadata after use #1658
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By default the
MinimizerScheduler
consumes the metadataM
once it doesn't need it anymore (e.g.MapIndexesMetadata
) . It might be desirable in some cases to keep these around for later use.Through
non_metadata_removing
the user can now opt out of deleting the metadata this way. I also added some documentation on the default behaviour for clarity.