[RFC] vim-patch:7.4.436

Problem:  ml_get error for autocommand that moves the cursor of the
          current window.
Solution: Check the cursor position after switching back to the current
          buffer. (Christian Brabandt)

https://code.google.com/p/vim/source/detail?r=v7-4-436
This exceeds the maximum line length of 80 characters. Can you put it on two lines like in the original patch?