vim-patch 7.4.1266

Problem:    A BufAdd autocommand may cause an ml_get error (Christian
            Brabandt)
Solution:   Increment RedrawingDisabled earlier.

ab9fc7e0cf

src/nvim/ex_cmds.c

@@ -2082,6 +2082,7 @@ do_ecmd (
   char_u      *command = NULL;
   int did_get_winopts = FALSE;
   int readfile_flags = 0;
+  bool did_inc_redrawing_disabled = false;
 
   if (eap != NULL)
     command = eap->do_ecmd_cmd;
@@ -2318,6 +2319,11 @@ do_ecmd (
     oldbuf = (flags & ECMD_OLDBUF);
   }
 
+  // Don't redraw until the cursor is in the right line, otherwise
+  // autocommands may cause ml_get errors.
+  RedrawingDisabled++;
+  did_inc_redrawing_disabled = true;
+
   buf = curbuf;
   if ((flags & ECMD_SET_HELP) || keep_help_flag) {
     prepare_help_buffer();
@@ -2394,8 +2400,6 @@ do_ecmd (
   /*
    * If we get here we are sure to start editing
    */
-  /* don't redraw until the cursor is in the right line */
-  ++RedrawingDisabled;
 
   /* Assume success now */
   retval = OK;
@@ -2547,7 +2551,8 @@ do_ecmd (
   if (curbuf->b_kmap_state & KEYMAP_INIT)
     (void)keymap_init();
 
-  --RedrawingDisabled;
+  RedrawingDisabled--;
+  did_inc_redrawing_disabled = false;
   if (!skip_redraw) {
     n = p_so;
     if (topline == 0 && command == NULL)
@@ -2566,8 +2571,12 @@ do_ecmd (
 
 
 theend:
-  if (did_set_swapcommand)
+  if (did_inc_redrawing_disabled) {
+    RedrawingDisabled--;
+  }
+  if (did_set_swapcommand) {
     set_vim_var_string(VV_SWAPCOMMAND, NULL, -1);
+  }
   xfree(free_fname);
   return retval;
 }

src/nvim/version.c

@@ -1177,7 +1177,7 @@ static int included_patches[] = {
   1269,
   // 1268 NA
   1267,
-  // 1266
+  1266,
   // 1265 NA
   // 1264 NA
   // 1263 NA