$ git clone -n https://src.fedoraproject.org/rpms/mtx.git /var/lib/mock/f41-build-772611-13506/root/chroot_tmpdir/scmroot/mtx
Cloning into '/var/lib/mock/f41-build-772611-13506/root/chroot_tmpdir/scmroot/mtx'...
$ git fetch origin c312a03fbe02ff987d70010797ae980ea9721201:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mtx
 * [new ref]         c312a03fbe02ff987d70010797ae980ea9721201 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c312a03 Eliminate use of obsolete %patchN syntax (#2283636)