When dragging a file from 7zip over a file as droptarget the mouse-ptr shows forbidden logo

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 file in filebrowser

Observed result
The mouse pointer shows forbidden logo 0.4.10-RC-22-gd3cc081__FilesAsDropTargets.webm

Expected result when drop-target-file is a dumb file like an ini
-The drop-target-file is not selected
-The drop-operation is allowed and when performing the operation the file is extracted into the parent folder 2k3sp2.webm

Expected result when drop-target-file is an exe
-The drop-target-file is selected (same like a folder would be e.g.)
-The drop-operation is allowed and when performing the drop the extracted file is not extracted to the parent folder, but instead launched via the exe (e.g. some handler is invoked)

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