$ git clone -n https://src.fedoraproject.org/rpms/gnome-music.git /var/lib/mock/f40-build-1736727-24671/root/chroot_tmpdir/scmroot/gnome-music
Cloning into '/var/lib/mock/f40-build-1736727-24671/root/chroot_tmpdir/scmroot/gnome-music'...
$ git fetch origin acb3bd812d9ee24a004438165b6fc9c3b5b47f77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-music
 * [new ref]         acb3bd812d9ee24a004438165b6fc9c3b5b47f77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at acb3bd8 Update to 46.1