$ git clone -n https://src.fedoraproject.org/rpms/libxmp.git /var/lib/mock/f41-build-side-1-2647748-27311/root/chroot_tmpdir/scmroot/libxmp
Cloning into '/var/lib/mock/f41-build-side-1-2647748-27311/root/chroot_tmpdir/scmroot/libxmp'...
$ git fetch origin 16509d4f38e4c584a0fbcad30e44d50a4d745dda:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libxmp
 * [new ref]         16509d4f38e4c584a0fbcad30e44d50a4d745dda -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16509d4 convert license to SPDX