$ git clone -n https://src.fedoraproject.org/rpms/xine-ui.git /var/lib/mock/f40-build-2145295-50880/root/chroot_tmpdir/scmroot/xine-ui
Cloning into '/var/lib/mock/f40-build-2145295-50880/root/chroot_tmpdir/scmroot/xine-ui'...
$ git fetch origin 2346b4b3ca02a9d89a5feb5016300b06bd43f9c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xine-ui
 * [new ref]         2346b4b3ca02a9d89a5feb5016300b06bd43f9c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2346b4b Fix C compatibility issues in the configure script