Oh, I did not mean both sides ACTIVE, that would be dumb thing to do obviously, I meant that current draw is there for either when active only L side or only R side of the bridge. Also such dead short would most likely produce more then 300mA, the first h-bridge went up to 3A then power supply went to overcurrent mode.
So far only thing that is about to smoke are those PNP base resistors which are now actualy brown in middle 
I'll try to swap them for bigger values and see.