$ git clone -n https://src.fedoraproject.org/rpms/colrdx.git /var/lib/mock/f41-build-759444-13440/root/chroot_tmpdir/scmroot/colrdx
Cloning into '/var/lib/mock/f41-build-759444-13440/root/chroot_tmpdir/scmroot/colrdx'...
$ git fetch origin 8133a1c32236c413f1917db9e458621ed19f87a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/colrdx
 * [new ref]         8133a1c32236c413f1917db9e458621ed19f87a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8133a1c Eliminate use of obsolete %patchN syntax (#2283636)