new: more information on the origin of the action found for custom charm action.

bin/compose

@@ -1874,7 +1874,18 @@ case "$action" in
         ;;
     *)
         if is_service_action=$(has_service_action "${action_posargs[0]}" "$action"); then
-            debug "Found action $DARKCYAN$action$NORMAL in service $DARKYELLOW${action_posargs[0]}$NORMAL"
+            {
+                read-0 action_type
+                case "$action_type" in
+                    "relation")
+                        read-0 _ target_service relation_name
+                        debug "Found action $DARKYELLOW${action_posargs[0]}$NORMAL/$DARKBLUE$relation_name$NORMAL/$DARKCYAN$action$NORMAL (in $DARKYELLOW$target_service$NORMAL)."
+                        ;;
+                    "direct")
+                        debug "Found action $DARKYELLOW${action_posargs[0]}$NORMAL.$DARKCYAN$action$NORMAL."
+                        ;;
+                esac
+            } < <(has_service_action "${action_posargs[0]}" "$action")
             services="${action_posargs[0]}"
         else
             services="$(get_default_target_services "${action_posargs[@]}")"