patch 8.1.1123: no way to avoid filtering for autocomplete function

Problem:    No way to avoid filtering for autocomplete function, causing
            flickering of the popup menu.
Solution:   Add the "equal" field to complete items. (closes #3887)

src/version.c

@@ -771,6 +771,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1123,
 /**/
     1122,
 /**/