Unexpected hiding of files with mime-type "application/x-trash"

Based on a very old bug report (https://bugs.kde.org/show_bug.cgi?id=3212) we changed Dolphin to consider files with mime-type "application/x-trash" to be hidden ( !558 (merged)). From what I can tell, users wanted this mostly because some applications created temporary backup files which users weren't expected to know about or interact with.

However, there are applications that do create non-temporary files with mime-type "application/x-trash" for the purpose of users knowing about them. Us hiding them confuses users and somewhat breaks those applications. Here is the new bug report about this: https://bugs.kde.org/show_bug.cgi?id=475805

So it seems like there are conflicting wishes. How do we proceed?