[Pushed] Selecting a preselected post on split thread function doesn't reset selected posts

[Darkrad]

Steps to reproduce

1. Select any post in a thread.
   
2. Via Moderator Options Select Split Thread (Not Split Posts)
   
3. Split the post you selected before.
   
4. See in older thread it still says Go (1) in Inline Moderation Options even though there is no post selected.
   

You can stack it so if you do that 5 times it would say Go (5) and if you try to select Split Posts then forum will try to split a post - which already splitted and became another thread and give "you can't split a post if it's the only post in a thread" error. Even after that error that Go (X) area does not reset.

[Eldenroot]

I can confirm

[Shade]

Confirmed on 1.8.12.

[Shade]

Hi,

Thank you for your report. We have pushed this issue to our Github repository for further analysis where you can track our commits and progress with fixing this bug. Discussions regarding this bug may also take place there too.

Follow this link to visit the issue on Github: https://github.com/mybb/mybb/issues/2817

Thanks for contributing to MyBB!

Regards,
The MyBB Group