parse_counters: properly delete category cache when child_unread changes

js/feedlist.js

@@ -310,8 +310,11 @@ function parse_counters(elems, scheduled_call) {
 				displayNewContentPrompt(id);
 			}
 
-			if (getFeedUnread(id, (kind == "cat")) != ctr)
+			if (getFeedUnread(id, (kind == "cat")) != ctr ||
+					(kind == "cat" && getCatParam(id) != child_unread)) {
+
 				cache_delete("feed:" + id + ":" + (kind == "cat"));
+			}
 
 			setFeedUnread(id, (kind == "cat"), ctr);
 
@@ -430,6 +433,14 @@ function setCatParam(cat, value) {
 	}
 }
 
+function getCatParam(cat) {
+	try {
+		return getFeedValue(cat, true, "child_unread");
+	} catch (e) {
+		//
+	}
+}
+
 
 function selectFeed(feed, is_cat) {
 	try {