$ git clone -n https://src.fedoraproject.org/rpms/gimp-layer-via-copy-cut.git /var/lib/mock/f41-build-side-1-2637475-26320/root/chroot_tmpdir/scmroot/gimp-layer-via-copy-cut
Cloning into '/var/lib/mock/f41-build-side-1-2637475-26320/root/chroot_tmpdir/scmroot/gimp-layer-via-copy-cut'...
$ git fetch origin 7203c9e50a11a6188ed391849896fb07cb4c316a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gimp-layer-via-copy-cut
 * [new ref]         7203c9e50a11a6188ed391849896fb07cb4c316a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7203c9e convert GPLv3+ license to SPDX