vim-patch:7.4.305

Problem:    Making 'ttymouse' empty after the xterm version was requested
            causes problems. (Elijah Griffin)
Solution:   Do not check for DEC mouse sequences when the xterm version was
            requested.  Also don't request the xterm version when DEC mouse
            was enabled.

https://code.google.com/p/vim/source/detail?r=v7-4-305

src/nvim/version.c

@@ -290,7 +290,7 @@ static int included_patches[] = {
   308,
   //307 NA
   306,
-  //305,
+  305,
   //304 NA
   303,
   302,