patch 8.1.0963: illegal memory access when using 'incsearch' commit https://github.com/vim/vim/commit/4a7d2d3b407ed695450bb7f43166e2f2722a6836 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Feb 21 16:25:50 2019 +0100 patch 8.1.0963: illegal memory access when using 'incsearch' Problem: Illegal memory access when using 'incsearch'. Solution: Reset highlight_match when changing text. (closes https://github.com/vim/vim/issues/4022)

--- a/src/misc1.c
+++ b/src/misc1.c
@@ -2854,6 +2854,11 @@ changed(void)
 	changed_int();
     }
     ++CHANGEDTICK(curbuf);
+
+#ifdef FEAT_SEARCH_EXTRA
+    // If a pattern is highlighted, the position may now be invalid.
+    highlight_match = FALSE;
+#endif
 }
 
 /*