$ git clone -n https://src.fedoraproject.org/rpms/lxqt-session.git /var/lib/mock/f45-build-17842-504/root/chroot_tmpdir/scmroot/lxqt-session
Cloning into '/var/lib/mock/f45-build-17842-504/root/chroot_tmpdir/scmroot/lxqt-session'...
$ git fetch origin 363dedc7e7abe11b2797b94153d4025e6e58b430:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxqt-session
 * [new ref]         363dedc7e7abe11b2797b94153d4025e6e58b430 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 363dedc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild