Activity thread replies broken when post is displayed multiple times on same screen

[timeuser]

When viewing the main activity screen and the same post shows up in multiple places you can't reply to it or the reply form shows up in the wrong place. Attached is a screenshot showing a scenario to reproduce the issue. In the screenshot Post "A" is displayed twice because the active user was @mentioned in it and also @mentioned in a parent post and we are viewing the mentions feed. Clicking reply under that post either does nothing or opens incorrectly under the other copy of the post. This behavior is broken randomly and differently depending on how many copies of the post are displayed on the screen. My guess is the ID being used to grab the post by javascript isn't unique.

[timeuser]

Screenshot

[r-a-y]

You shouldn't be able to see activity replies on activity comments. This isn't default behavior.

For example:

Notice that there isn't any replies shown underneath?

[Offereins]

Related #6983

[DJPaul]

This sounds like it's something customised in a template that hasn't handled this exception to where we don't allow replies. @timeuser what theme are you using?

[timeuser]

The screenshot above is from the WordPress Twenty Fifteen theme. We're using the Boss theme by BuddyBoss on our live site and the issue is there also.

[DJPaul]

BuddyBoss is looking into this from their end.

[DJPaul]

I never heard from BuddyBoss if they identified the issue or not, other than they confirmed they customised the template. I couldn't recreate this on other themes, so we'll need to wait to hear from them.