https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=8397 --- Comment #7 from Mason James <mtj@kohaaloha.com> --- (In reply to Jonathan Druart from comment #5)

(In reply to Mason James from comment #4)

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(In reply to Owen Leonard from comment #0)

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If you use the "import patrons" tool to upload a CSV file of patron records it is possible to create more than one patron with the same userid. This should not be possible.

I also hit this bug today, when attempting to import/update patrons with undefined ("") userids

Which versions? Do you have the unique key defined? (see bug 1861).

version 3.18.9 to master in my situation the unique key is '', which is a valid value hey? -- You are receiving this mail because: You are watching all bug changes. You are the assignee for the bug.