$ git clone -n https://src.fedoraproject.org/rpms/xmonad.git /var/lib/mock/f38-build-side-42-init-devel-941810-28762/root/chroot_tmpdir/scmroot/xmonad
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-941810-28762/root/chroot_tmpdir/scmroot/xmonad'...
$ git fetch origin 39d4fd330dfc897cd3284e5a3150dcaa83607e33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmonad
 * [new ref]         39d4fd330dfc897cd3284e5a3150dcaa83607e33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39d4fd3 refresh to cabal-rpm-2.1.0 including SPDX migration