Implement suggestion for fixing forceupdate flag

CHANGELOG.md

@@ -23,6 +23,7 @@ This is the rolling changelog for TShock for Terraria. Use past tense when addin
   * Added a new permission: `tshock.world.growevil` to prevent players to grow evil biome trees, these trees spawn with evil biome blocks below them.
 * Introduced `/wallow` to disable or enable recieving whispers from other players. (@Nova4334)
 * Removed stoned & webbed from disabled status (@QuiCM)
+* Fix -forceupdate flag not forcing updates (@Quake)
 
 ## TShock 4.4.0 (Pre-release 15)
 * Overhauled Bans system. Bans are now based on 'identifiers'. (@QuiCM)

TShockAPI/TShock.cs

@@ -890,6 +890,13 @@ namespace TShockAPI
 		/// <param name="args">args - EventArgs args</param>
 		private void OnUpdate(EventArgs args)
 		{
+			// This forces Terraria to actually continue to update
+			// even if there are no clients connected
+			if (ServerApi.ForceUpdate)
+			{
+				Netplay.HasClients = true;
+			}
+
 			if (Backups.IsBackupTime)
 				Backups.Backup();
 			//call these every second, not every update