$ git clone -n https://src.fedoraproject.org/rpms/lxqt-themes.git /var/lib/mock/f45-build-17843-504/root/chroot_tmpdir/scmroot/lxqt-themes
Cloning into '/var/lib/mock/f45-build-17843-504/root/chroot_tmpdir/scmroot/lxqt-themes'...
$ git fetch origin a32f26a2c4bbc278c3956f052087a64e483843e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxqt-themes
 * [new ref]         a32f26a2c4bbc278c3956f052087a64e483843e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a32f26a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild