Merge pull request #8110 from trimbe/remove-on-leave

clanchat: remove activity in buffer in ClanMemberLeft as well

runelite-client/src/main/java/net/runelite/client/plugins/clanchat/ClanChatPlugin.java

@@ -201,11 +201,17 @@ public class ClanChatPlugin extends Plugin
 			return;
 		}
 
+		if (!activityBuffer.containsKey(member.getUsername()))
+		{
 			ClanMemberActivity leaveActivity = new ClanMemberActivity(ClanActivityType.LEFT,
 				member, client.getTickCount());
-
 			activityBuffer.put(member.getUsername(), leaveActivity);
 		}
+		else
+		{
+			activityBuffer.remove(member.getUsername());
+		}
+	}
 
 	@Subscribe
 	public void onGameTick(GameTick gameTick)