$ git clone -n https://src.fedoraproject.org/rpms/xorg-x11-xtrans-devel.git /var/lib/mock/f40-build-2225414-52823/root/chroot_tmpdir/scmroot/xorg-x11-xtrans-devel
Cloning into '/var/lib/mock/f40-build-2225414-52823/root/chroot_tmpdir/scmroot/xorg-x11-xtrans-devel'...
$ git fetch origin 5a7ae0efaadb51a5b6f44b1f4a98effb18df0d36:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xorg-x11-xtrans-devel
 * [new ref]         5a7ae0efaadb51a5b6f44b1f4a98effb18df0d36 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a7ae0e SPDX Migration