$ git clone -n https://src.fedoraproject.org/rpms/libqtxdg.git /var/lib/mock/f41-build-side-1-2647690-27310/root/chroot_tmpdir/scmroot/libqtxdg
Cloning into '/var/lib/mock/f41-build-side-1-2647690-27310/root/chroot_tmpdir/scmroot/libqtxdg'...
$ git fetch origin c6ab7d60ec74106a4e43d5f58ffdcdf7750775bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libqtxdg
 * [new ref]         c6ab7d60ec74106a4e43d5f58ffdcdf7750775bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6ab7d6 convert license to SPDX