$ git clone -n https://src.fedoraproject.org/rpms/wingpanel.git /var/lib/mock/f33-build-347445-59566/root/chroot_tmpdir/scmroot/wingpanel
Cloning into '/var/lib/mock/f33-build-347445-59566/root/chroot_tmpdir/scmroot/wingpanel'...
$ git reset --hard 139884d2548529b5a28f2775e80eba2dff1adbde
HEAD is now at 139884d add patch for initial mutter 3.38 support