$ git clone -n https://src.fedoraproject.org/rpms/lxqt-build-tools.git /var/lib/mock/f45-build-17826-504/root/chroot_tmpdir/scmroot/lxqt-build-tools
Cloning into '/var/lib/mock/f45-build-17826-504/root/chroot_tmpdir/scmroot/lxqt-build-tools'...
$ git fetch origin ba6ec3eec0c65d5cef3c553d661e04ef93ea0bef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxqt-build-tools
 * [new ref]         ba6ec3eec0c65d5cef3c553d661e04ef93ea0bef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba6ec3e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild