$ git clone -n https://src.fedoraproject.org/rpms/go-vendor-tools.git /var/lib/mock/f41-build-side-1-2646781-27250/root/chroot_tmpdir/scmroot/go-vendor-tools
Cloning into '/var/lib/mock/f41-build-side-1-2646781-27250/root/chroot_tmpdir/scmroot/go-vendor-tools'...
$ git fetch origin a2d9927d3283d1a347d3712633d06735b9c855d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/go-vendor-tools
 * [new ref]         a2d9927d3283d1a347d3712633d06735b9c855d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2d9927 Update to 0.6.0.