After hundreds of debug processes, I've finally found the function which is used to do that. Here is screenshot:
Right now it only displays one level of replies but you can modify your theme and remove this conditional https://github.com/NodeBB/nodebb-theme-persona/blob/master/templates/partials/topic/post.tpl#L87-Lundefined then you will get nested replies as well.
You can update to master or wait for 1.3.0 to get the feature. It looks like this.
As usual please report any bugs you find on our tracker at github.
@baris Nice, can't wait for 1.3.0 now... Upgrading to master is sometimes too dicey for me.
@baris I love it!
@baris reply here
@exodo is this a nested reply?
would be an option to disable this behaviour? I mean, is it placed at the core or by a plugin?
I think it looks good, but if a post gets too many replies, the result having this would be crazy, when clicked on the expand control.
@jarey it's in core and persona theme. Right now there is no option to disable it other than removing it from persona manually.
@jarey you can also hide it with custom CSS
What about localization? In this forum I see only "replies_to_this_post" (at screenshot "Replies: 2"). Why now this phrase with underscores and without reply counts as it shown at screenshot.
I choice Russian language, but see still same untranslated "replies_to_this_post" (Transifex show 100% translated)
@alff0x1f it's a bug that should be fixed soon.