patch 8.2.4343: when reloading not all properties are detected

Problem:    When reloading not all properties are detected.
Solution:   Add the "edit" value to v:fcs_choice. (Rob Pilling, closes #9579)
diff --git a/src/spellfile.c b/src/spellfile.c
index b5c6693..5b34298 100644
--- a/src/spellfile.c
+++ b/src/spellfile.c
@@ -6336,7 +6336,7 @@
 
 	// If the .add file is edited somewhere, reload it.
 	if (buf != NULL)
-	    buf_reload(buf, buf->b_orig_mode);
+	    buf_reload(buf, buf->b_orig_mode, FALSE);
 
 	redraw_all_later(SOME_VALID);
     }