When dragging a file from 7zip over a folder in filebrowser the folder should get selected in blue instead of grey

0.4.10-RC-22-gd3cc081 gcc dbg linux
7zip 18.05 from rapps

When dragging (without dropping) a single file from a compressed 7zip archive and the drop target is a folder in filebrowser

Observed result
The folder gets selected with grey color 0.4.10-RC-22-gd3cc081__FilesAsDropTargets.webm

Expected result
The folder gets selected with blue color 2k3sp2.webm

The logfile 0.4.10-RC-22-gd3cc081__drag&drop_IsUseless.log is useless and the masked exceptions within are unrelated.