$ git clone -n https://src.fedoraproject.org/rpms/compiz-bcop.git /var/lib/mock/f45-build-4596-333/root/chroot_tmpdir/scmroot/compiz-bcop
Cloning into '/var/lib/mock/f45-build-4596-333/root/chroot_tmpdir/scmroot/compiz-bcop'...
$ git fetch origin 273bb02d3a004167a0e230f87134582d7e327b0b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/compiz-bcop
 * [new ref]         273bb02d3a004167a0e230f87134582d7e327b0b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 273bb02 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild