1 files changed, 5 insertions, 0 deletions
diff --git a/Swiften/Roster/RosterItemOperation.h b/Swiften/Roster/RosterItemOperation.h
index a901fb4..e27e68b 100644
--- a/Swiften/Roster/RosterItemOperation.h
+++ b/Swiften/Roster/RosterItemOperation.h
@@ -17,6 +17,11 @@ class RosterItemOperation {
 		virtual ~RosterItemOperation() {};
 		bool requiresLookup() const {return requiresLookup_;};
 		const JID& lookupJID() const {return lookupJID_;}; 
+		/**
+		 * This is called when iterating over possible subjects, so must check it's
+		 * applying to the right items - even if requiresLookup() is true an item
+		 * with the same bare JID but different full JID may be passed.
+		 */
 		virtual void operator() (RosterItem*) const = 0;
 	private:
 		bool requiresLookup_;