$ git clone -n https://src.fedoraproject.org/rpms/lxsession.git /var/lib/mock/f45-build-17876-505/root/chroot_tmpdir/scmroot/lxsession
Cloning into '/var/lib/mock/f45-build-17876-505/root/chroot_tmpdir/scmroot/lxsession'...
$ git fetch origin da05bf5d33701a4805bf0586856f13c4c775b066:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxsession
 * [new ref]         da05bf5d33701a4805bf0586856f13c4c775b066 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da05bf5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild