$ git clone -n https://src.fedoraproject.org/rpms/x86-simd-sort.git /var/lib/mock/f38-build-side-42-init-devel-1086457-30028/root/chroot_tmpdir/scmroot/x86-simd-sort
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1086457-30028/root/chroot_tmpdir/scmroot/x86-simd-sort'...
$ git fetch origin f128345e7b68f8471dff64e2e13953db19024979:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/x86-simd-sort
 * [new ref]         f128345e7b68f8471dff64e2e13953db19024979 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f128345 dependency fix