updated for version 7.0g
diff --git a/src/getchar.c b/src/getchar.c
index 3b9d420..88e724f 100644
--- a/src/getchar.c
+++ b/src/getchar.c
@@ -4335,11 +4335,26 @@
char_u *res;
char_u *p;
char_u *save_cmd;
+ pos_T save_cursor;
save_cmd = save_cmdline_alloc();
if (save_cmd == NULL)
return NULL;
+
+ /* Forbid changing text or using ":normal" to avoid most of the bad side
+ * effects. Also restore the cursor position. */
+ ++textlock;
+#ifdef FEAT_EX_EXTRA
+ ++ex_normal_lock;
+#endif
+ save_cursor = curwin->w_cursor;
p = eval_to_string(str, NULL, FALSE);
+ --textlock;
+#ifdef FEAT_EX_EXTRA
+ --ex_normal_lock;
+#endif
+ curwin->w_cursor = save_cursor;
+
restore_cmdline_alloc(save_cmd);
if (p == NULL)
return NULL;