$ git clone -n https://src.fedoraproject.org/rpms/python-music21.git /var/lib/mock/f41-build-side-1-2814733-32949/root/chroot_tmpdir/scmroot/python-music21
Cloning into '/var/lib/mock/f41-build-side-1-2814733-32949/root/chroot_tmpdir/scmroot/python-music21'...
$ git fetch origin b3b83ce44b4650a1674ebe62c1a71cd44a1d8ac3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-music21
 * [new ref]         b3b83ce44b4650a1674ebe62c1a71cd44a1d8ac3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3b83ce Convert license tag to SPDX