$ git clone -n https://src.fedoraproject.org/rpms/libxklavier.git /var/lib/mock/f45-build-17366-498/root/chroot_tmpdir/scmroot/libxklavier
Cloning into '/var/lib/mock/f45-build-17366-498/root/chroot_tmpdir/scmroot/libxklavier'...
$ git fetch origin 0fa4f60f8e5cef46800989965d5685c193d53518:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libxklavier
 * [new ref]         0fa4f60f8e5cef46800989965d5685c193d53518 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0fa4f60 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild