Both moderators and staff on our forum cannot edit a post that contains a poll that was created several days ago - we always get the following error: ‘You cannot change a poll after the first 5 minutes’.
We’re on the latest build.
Might be a regression of this issue?
@nbianca can you have a look?
Could you give an example when this is happening? I’m asking this because I can edit the post, but not the poll, and this is the expected behaviour (for admin and moderators).
Hey Bianca!
Sure, we’re trying to edit this post which, I admit, is rather long. My moderator is trying to insert a graphic at the very top, and in my own tests it also fails to save if I make other changes, like adding a line to the bottom. We’re not making any changes to the poll itself though.
I can send you the raw post in a PM if that helps.
Hi Bart!
I would really appreciate if you could send me the raw post, because I cannot reproduce it and this would be a great help to me. Please enclose it into [code] tags.
You can get the raw by going to https://blenderartists.org/raw/1136926/1 
Did you find anything wrong with our post?
Hi Bart,
I cannot reproduce it. Can you tell me if this is happening for other polls or is just this one?
This is the only one so far. Since this is a weekly challenge we may run into it again - I’ll keep an eye on it.
Follow-up: my moderator just posted this:
I just figured it out. It seems that the editing block is only engaged when the poll is closed . If I temporarily re-open the poll, I can edit the post without any issue at all.
That was helpful and it was fixed in:
https://github.com/discourse/discourse/pull/6788