Task - Unify - Two OTUs

[proceps]

3i project practice
I have two OTUs 80945 and 81704
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If I try to unify those, I have an error message

I try I do not know if the biological association have different or the same citation, but if it try to uncheck biological association, assuming that those just get ignored and deleted, but nothing happens I still have the same error message.

Expected behavior for biological associations and asserted distribution which are duplicate, the citations should be moved from one association and distribution record to another, duplicate associations and distributions to be deleted.

Anything which is unchecked on the right side to be deleted without being copied to the right side.