Invite links (Accept Invitation Button) with SSO not working for stable v2.8.10

[martin (Martin Brennan)]

@hyphalos

I did some more testing and what I’ve observed is after updating to v2.8.11 is that people can only accept an invitation once no matter the create invite settings. I’ve tested it with Arrive at topic, without arrive at topic, add to group, without add to group, etc. and people can only accept invites once. Is this intended behaviour?

What if a guest signs up but uses the same invite URL again, they’ll get stuck in the invite page (no redirection with arrive at topic). When they click Accept Invitation, this error pops up

Yes this is expected. Not the error, the part where they are unable to Accept Invitation multiple times. We discussed this over at New 'accept invitation' prompt feature causing issues with invitation links - #14 by martin where I did a fix, but I see now I will need to backport that fix to stable as well cc @sam