this is general in Mate. Same on debian (stretch) matedesktop.
xdg-mime query default application/x-desktop userapp-pluma-JPST30.desktop
this desktop file appears under $HOME/.local/share/applications/
cat .local/share/applications/userapp-pluma-JPST30.desktop [Desktop Entry] Encoding=UTF-8 Version=1.0 Type=Application NoDisplay=true Exec=pluma %f Name=pluma Comment=Benutzerdefinition für pluma alex@Taomon:~$
even with xdg-mime itself I can not change it to pluma.desktop
this is general in Mate. Same on debian (stretch) matedesktop.
xdg-mime query default application/ x-desktop pluma-JPST30. desktop
userapp-
this desktop file appears under $HOME/. local/share/ applications/
cat .local/ share/applicati ons/userapp- pluma-JPST30. desktop Benutzerdefinit ion für pluma
[Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
NoDisplay=true
Exec=pluma %f
Name=pluma
Comment=
alex@Taomon:~$
even with xdg-mime itself I can not change it to pluma.desktop