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Message "422 Validation failed: Username has already been taken" shows up when trying to follow users on instances that are running on different versions #4626

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contraexemplo opened this Issue Aug 17, 2017 · 2 comments

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contraexemplo commented Aug 17, 2017

I'm on im-in.space and it's running on v. 1.5.1. In the last couple of days, I noticed I couldn't follow some users -- this action prompted the message "422 Validation failed: Username has already been taken". While talking about this with im-in.space's admin, awoo.space's admin suggested it could be some kind of incompatibility between releases. Looking for the instances with which I experienced this error, I found out they're running on v. 1.4.7.


  • I searched or browsed the repo’s other issues to ensure this is not a duplicate.
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nolanlawson commented Oct 28, 2017

This also appears to be happening between toot.cafe and social.coop, even though both are on 2.0.0.

STR:

  1. Go to toot.cafe
  2. Paste in https://social.coop/@datatitian/98903347183237963 to the search
  3. Press enter

Reported here: https://toot.cafe/@flakoot/98905852846736242

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nolanlawson commented Oct 28, 2017

Same error happens when I try to follow https://social.coop/@datatitian from within toot.cafe. (I.e. click the follow button on their profile page.)

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