Behavior on Flat View mode

In spite of Folder Formats prefence of Flat View being set not to be grouped, when I switch a grouped current Folder View into Flat View mode, the Folder View was unexpectedly grouped by the preference the original Folder View had.

It, however, can be fixed after manual refresh.

Woud it be possible not to include original group setting?

Original Folder Preference:

Flat View Preference:

Original Folder view:

After going into Flat View mode:

If it is inheriting grouping from the current format and you don't want it to, a quick solution is to edit the Flat View button that you're clicking and add a command to turn off grouping.

Set GROUPBY=off on the last line should do it.

I think it has fixed.