update RouterInfo if congestion cap changed

libi2pd/RouterContext.cpp

@@ -1397,7 +1397,8 @@ namespace i2p
 	{
 		if (ecode != boost::asio::error::operation_aborted)
 		{
-			m_RouterInfo.SetHighCongestion (IsHighCongestion ());
+			if (m_RouterInfo.SetHighCongestion (IsHighCongestion ()))
+				UpdateRouterInfo ();
 			ScheduleCongestionUpdate ();
 		}	
 	}	

libi2pd/RouterInfo.cpp

@@ -1149,14 +1149,16 @@ namespace data
 		SetProperty ("caps", caps);
 	}
 
-	void LocalRouterInfo::SetHighCongestion (bool highCongestion)
+	bool LocalRouterInfo::SetHighCongestion (bool highCongestion)
 	{
 		Congestion c = highCongestion ? eHighCongestion : eLowCongestion;
 		if (c != GetCongestion ())
 		{
 			SetCongestion (c);
 			UpdateCapsProperty ();
+			return true;
 		}	
+		return false;
  	}	
 		
 	void LocalRouterInfo::WriteToStream (std::ostream& s) const

libi2pd/RouterInfo.h

@@ -332,7 +332,7 @@ namespace data
 			LocalRouterInfo (const std::string& fullPath);
 			void CreateBuffer (const PrivateKeys& privateKeys);
 			void UpdateCaps (uint8_t caps);
-			void SetHighCongestion (bool highCongestion);
+			bool SetHighCongestion (bool highCongestion); // returns true if updated
 
 			void SetProperty (const std::string& key, const std::string& value) override;
 			void DeleteProperty (const std::string& key);