$ git clone -n https://src.fedoraproject.org/rpms/js-d3-flame-graph.git /var/lib/mock/f40-build-2218043-52578/root/chroot_tmpdir/scmroot/js-d3-flame-graph
Cloning into '/var/lib/mock/f40-build-2218043-52578/root/chroot_tmpdir/scmroot/js-d3-flame-graph'...
$ git fetch origin 259dee0f85dd0eb3249f9a9cfc3b437e41a7d7b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/js-d3-flame-graph
 * [new ref]         259dee0f85dd0eb3249f9a9cfc3b437e41a7d7b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 259dee0 Rework of gating tests