$ git clone -n https://src.fedoraproject.org/rpms/gtk-session-lock.git /var/lib/mock/f45-build-13166-447/root/chroot_tmpdir/scmroot/gtk-session-lock
Cloning into '/var/lib/mock/f45-build-13166-447/root/chroot_tmpdir/scmroot/gtk-session-lock'...
$ git fetch origin 34ac7441d011990ba4f295e0bf2d394dd4888c79:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtk-session-lock
 * [new ref]         34ac7441d011990ba4f295e0bf2d394dd4888c79 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34ac744 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild