patch 8.2.1677: memory access errors when calling setloclist() in autocommand

Problem:    Memory access errors when calling setloclist() in an autocommand.
Solution:   Give an error if the list was changed unexpectedly. (closes #6946)

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1677,
 /**/
     1676,
 /**/