$ git clone -n https://src.fedoraproject.org/rpms/gfan.git /var/lib/mock/f40-build-798157-141758/root/chroot_tmpdir/scmroot/gfan
Cloning into '/var/lib/mock/f40-build-798157-141758/root/chroot_tmpdir/scmroot/gfan'...
$ git reset --hard c12b8f2732405e2953668450cb8bfcfabfdd80af
HEAD is now at c12b8f2 Update standard to C++14 to fix FTBFS