1. I've exported my test Campaign page (I'm the author of it): https://release.k8s.p4.greenpeace.org/international/campaign/all-available-blocks/

2. Renamed the page title in the XML so i can reimport it to the same instance

(Attached the XML file to the ticket)

3. Reimported it, and there is a screen when i'm asked to assign authors to the imported page, where there are 8 authors listed (i've tried it with other pages too, there i had 11 authors), asking me to reassign them (see screenshot attached). Now these people definitely never even edited my page, so I'm sure it's a bug. Anyway, there should be only author assigned to any given page, no?