$ git clone -n https://src.fedoraproject.org/rpms/spacebar.git /var/lib/mock/f38-build-side-42-init-devel-973989-28922/root/chroot_tmpdir/scmroot/spacebar
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-973989-28922/root/chroot_tmpdir/scmroot/spacebar'...
$ git fetch origin e2d0e37a7f1e58e980efb26d79b22821ee182d5d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/spacebar
 * [new ref]         e2d0e37a7f1e58e980efb26d79b22821ee182d5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2d0e37 Add Kirigami Addons build dependency and sort