vim-patch:7.4.458

Problem:    Issue 252: Cursor moves in a zero-height window.
Solution:   Check for zero height. (idea by Christian Brabandt)

https://code.google.com/p/vim/source/detail?r=v7-4-458

src/nvim/move.c

@@ -146,6 +146,15 @@ void update_topline(void)
   if (!screen_valid(TRUE))
     return;
 
+  // If the window height is zero, just use the cursor line.
+  if (curwin->w_height == 0) {
+    curwin->w_topline = curwin->w_cursor.lnum;
+    curwin->w_botline = curwin->w_topline;
+    curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
+    curwin->w_scbind_pos = 1;
+    return;
+  }
+
   check_cursor_moved(curwin);
   if (curwin->w_valid & VALID_TOPLINE)
     return;

src/nvim/version.c

@@ -279,7 +279,7 @@ static int included_patches[] = {
   //461 NA
   //460 NA
   //459 NA
-  //458,
+  458,
   457,
   456,
   455,