$ git clone -n https://src.fedoraproject.org/rpms/xastir.git /var/lib/mock/f41-build-side-1-2892708-34598/root/chroot_tmpdir/scmroot/xastir
Cloning into '/var/lib/mock/f41-build-side-1-2892708-34598/root/chroot_tmpdir/scmroot/xastir'...
$ git fetch origin 7c05b50c5e18ca88adfe2e88a046ad47d0abfd48:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xastir
 * [new ref]         7c05b50c5e18ca88adfe2e88a046ad47d0abfd48 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c05b50 convert GPLv2+ license to SPDX