unique key violation for denumber

[physikerwelt]

Describe the bug
there should only 1 de number be assigned to one mardi qid. This is not always the case

See
https://portal.mardi4nfdi.de/w/index.php?title=Item%3AQ559658&diff=11852950&oldid=1841932

Expected behavior
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To Reproduce
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2. Click on '....'
3. Scroll down to '....'
4. See error

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Additional context
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• Assignee has been set for this issue
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[LizzAlice]

Found the reason for this. After the redirection script is through, I will run the script that adds ids to items that are missing them and then I will do I run where I delete and reupload the items containing more than one de number/ zbl_id