$ git clone -n https://src.fedoraproject.org/rpms/supercollider.git /var/lib/mock/f41-build-1016474-17897/root/chroot_tmpdir/scmroot/supercollider
Cloning into '/var/lib/mock/f41-build-1016474-17897/root/chroot_tmpdir/scmroot/supercollider'...
$ git fetch origin a31a10ee4936614d39c07b53ff4311efd7275893:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/supercollider
 * [new ref]         a31a10ee4936614d39c07b53ff4311efd7275893 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a31a10e Eliminate use of obsolete %patchN syntax (#2283636)