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AttributeError: 'DocTypeLink'

If i need make sales invoice showing error

AttributeError: ‘DocTypeLink’ object has no attribute ‘parent_doctype’


I’m getting this same cryptic error after an upgrade to from 13.8.0 to 13.10.2. I get it when clicking on a user in the User list.

Upgrading mariadb to 10.5.12 resolved this issue for me.