$ git clone -n https://src.fedoraproject.org/rpms/kwalletmanager5.git /var/lib/mock/f41-build-846891-163497/root/chroot_tmpdir/scmroot/kwalletmanager5
Cloning into '/var/lib/mock/f41-build-846891-163497/root/chroot_tmpdir/scmroot/kwalletmanager5'...
$ git fetch origin 996b172f16932abbe360f8ac755512708d3f6e86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kwalletmanager5
 * [new ref]         996b172f16932abbe360f8ac755512708d3f6e86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 996b172 Update filelist for service file rename