$ git clone -n https://src.fedoraproject.org/rpms/MUSIC.git /var/lib/mock/f40-build-2012215-45777/root/chroot_tmpdir/scmroot/MUSIC
Cloning into '/var/lib/mock/f40-build-2012215-45777/root/chroot_tmpdir/scmroot/MUSIC'...
$ git fetch origin 8795d75fe802b28c7a1e0ccf59223f5962b5dedc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/MUSIC
 * [new ref]         8795d75fe802b28c7a1e0ccf59223f5962b5dedc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8795d75 fix: exclude ix86 (fixes rh#2224366, rh#2246998, rh#2224362)