$ git clone -n https://src.fedoraproject.org/rpms/python-music21.git /var/lib/mock/f40-build-2181167-51174/root/chroot_tmpdir/scmroot/python-music21
Cloning into '/var/lib/mock/f40-build-2181167-51174/root/chroot_tmpdir/scmroot/python-music21'...
$ git fetch origin 8d10fad1fbc8ac9ed0fe14a0b9e68fbf423b1294:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-music21
 * [new ref]         8d10fad1fbc8ac9ed0fe14a0b9e68fbf423b1294 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d10fad Drop i686 support