Don't include "added" separator on posts merge.

misago/apps/threadtype/posting/newreply.py

@@ -51,7 +51,7 @@ class NewReplyBaseView(PostingBaseView):
             merged = True
             self.post = self.thread.last_post
             self.post.date = now
-            self.post.post = '%s\n\n- - -\n**%s**\n%s' % (self.post.post, _("Added on %(date)s:") % {'date': date(now, 'SHORT_DATETIME_FORMAT')}, form.cleaned_data['post'])
+            self.post.post = '%s\n\n%s' % (self.post.post, form.cleaned_data['post'])
             self.md, self.post.post_preparsed = post_markdown(self.request, self.post.post)
             self.post.save(force_update=True)
         else: