Pentax' Optical Design Copied Leica's?

First, this is the Leica Tri-Elmar 28-35-50mm F4 Wide "Zoom", at 28mm:



And then, this is the Pentax FA20-35mm F4 Ultra Wide Zoom:



And then, compare the above two and then also against the Leica Summilux 21mm Prime below:



Via: http://www.dchome.net/forum.php?mod=viewthread&tid=1215807
(in Chinese)

It is not difficult to notice that, as the OP has pointed out, the optical designs of the