Syntax error in /usr/share/applications/mate-mimeapps.list

The lines in /usr/share/applications/mate-mimeapps.list end in semicolons while they shouldn't; and that breaks xdg-mime and xdg-open.

Specifically:
$ grep plain /usr/share/applications/mate-mimeapps.list
text/plain=pluma.desktop;

That should be like that instead:
text/plain=pluma.desktop

A small effect of of the issue is:
$ xdg-mime query default text/plain
pluma.desktop;

That should return plain "pluma.desktop".

To see a more severe effect, we have to symlink that file to /etc/xdg/mimeapps.list, otherwise xdg-open falls back to gvfs-open and mate-mimeapps.list isn't used at all!
sudo ln -s /usr/share/applications/mate-mimeapps.list /etc/xdg/mimeapps.list
sudo strace -e trace=file xdg-open /etc/adduser.conf 2>&1 | grep "desktop;"
...
faccessat(AT_FDCWD, "/usr/share//applications//pluma.desktop;", R_OK) = -1 ENOENT (No such file or directory)

I.e. it tries to find a "pluma.desktop;" file and fails, instead of searching for "pluma.desktop".
Then it opens the file with "less" and "libreoffice" at the same time!

==> I propose that /usr/share/applications/mate-mimeapps.list gets dropped completely.
ubuntu-mate-default-settings ships /usr/share/mate/applications/defaults.list as well, and that one is more complete and doesn't have syntax errors.