[Solved] Topic title works, but CHANGED default post title does not  

Hello,

While testing several wpForo configuration settings, I have come across this issue: on a brand new wpForo install, if I create a topic (topic title example: "Red is good"), I can see that, for each post reply, the form presents also the possibility to edit the post title.

For example, if I add a reply to the first post by changing the default title "RE: Red is good" and change it to "Green is better!" and then I add some text in the post body, the changed title will not be visible.

I would expect, if post titles are not changed, that they will naturally be not shown, because they are practically the same as the topic's main title. But if I do change them, I would expect them to be seen.

I can see that the changed post title "Green is better!" has actually been recorded in the wpforo_posts table, only it is not displayed.

I have attached a picture to show the issue described.

Is there a setting I cannot see that changes this behaviour?

Thank you

P.S. I tagged this as "titles, post, bug report" but if there is a setting for this I'm happy to remove the "bug report". Thanks