Fix oversight

Author: bynect

dunstrc

@@ -179,12 +179,12 @@
     #   %s  summary
     #   %b  body
     #   %c  category
-    #   %U  urgency (LOW, NORMAL, CRITICAL)
+    #   %S  stack_tag
     #   %i  iconname (including its path)
     #   %I  iconname (without its path)
     #   %p  progress value if set ([  0%] to [100%]) or nothing
     #   %n  progress value if set without any extra characters
-    #   %%  Literal %
+    #   %%  literal %
     # Markup is allowed
     format = "<b>%s</b>\n%b"
 

src/notification.c

@@ -609,7 +609,7 @@ static void notification_format_message(struct notification *n)
                         notification_replace_single_field(
                                 &n->msg,
                                 &substr,
-                                n->stack_tag,
+                                n->stack_tag ? n->stack_tag : "",
                                 MARKUP_NO);
                         break;
                 case 'I':