Merge pull request #11543 from Phrohdoh/chatcommands-no-dupes

Allow overriding previously registered chatcommands

OpenRA.Mods.Common/Commands/ChatCommands.cs

@@ -48,7 +48,8 @@ namespace OpenRA.Mods.Common.Commands
 
 		public void RegisterCommand(string name, IChatCommand command)
 		{
-			Commands.Add(name.ToLowerInvariant(), command);
+			// Override possible duplicates instead of crashing.
+			Commands[name.ToLowerInvariant()] = command;
 		}
 	}
 

OpenRA.Mods.Common/Commands/HelpCommand.cs

@@ -55,7 +55,7 @@ namespace OpenRA.Mods.Common.Commands
 
 		public void RegisterHelp(string name, string description)
 		{
-			helpDescriptions.Add(name, description);
+			helpDescriptions[name] = description;
 		}
 	}
 }