\ issue in Command Line field?

[peteruithoven]

I have a desktop file for Firefox nightly. I've hardcoded it to open with my "Nightly" profile. But every time I save changes to it's Command Line field it seems to add \'s.
Screencast:

Original desktop file:

[Desktop Entry]
Name=Firefox Z Nightly
GenericName=Firefox Nightly
Exec=/usr/local/firefox_nightly/firefox -p "Nightly" --no-remoteappcen
Terminal=false
Icon=firefox_nightly
Type=Application
Categories=Application;X-Developer;Network;
Comment=Firefox Nightly Web Browser.
Name[en_US]=Firefox Nightly
X-GNOME-FullName[en_US]=Firefox Nightly
Comment[en_US]=Firefox Nightly Web Browser.
NoDisplay=false
Path=
X-GNOME-UsesNotifications=false

When going to this item in AppEditor it's Command Line shows:

/usr/local/firefox_nightly/firefox -p "Nightly" --no-remoteappcen

If I then make any change (even when changing the title for example) it adds those \'s and it changed the desktop file to:

[Desktop Entry]
Name=Firefox Z Nightly
GenericName=Firefox Nightly
Exec=/usr/local/firefox_nightly/firefox -p \\"Nightly\\" --no-remoteappcen
Terminal=false
Icon=firefox_nightly
Type=Application
Categories=Application;X-Developer;Network;
Comment=Firefox Nightly Web Browser.
Name[en_US]=Firefox Nightly
X-GNOME-FullName[en_US]=Firefox Nightly
Comment[en_US]=Firefox Nightly Web Browser.
NoDisplay=false
Path=
X-GNOME-UsesNotifications=false

If I make other change more \'s are added.

[donadigo]

Yes, this is known bug and a I'm aware of it, should be fixed in a new release

[eljefuri]

I can confirm the issue @peteruithoven found. It is particularly destructive with Wine .desktop files, where there are paths with \ in them. Simply saving those entries in AppEditor seems to add more and more \ until the desktop file stops working.