$ git clone -n https://src.fedoraproject.org/rpms/gnome-music.git /var/lib/mock/f45-build-11472-432/root/chroot_tmpdir/scmroot/gnome-music
Cloning into '/var/lib/mock/f45-build-11472-432/root/chroot_tmpdir/scmroot/gnome-music'...
$ git fetch origin ccd4636714444981d01b0d2406ce5576999294ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-music
 * [new ref]         ccd4636714444981d01b0d2406ce5576999294ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ccd4636 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild