Fix the RoomUnbanner capability.

Author: Gnuxie

CHANGELOG.md

@@ -11,6 +11,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.5.2] - 2025-01-18
+
+### Fixed
+
+- Fix an issue where the implementation of the RoomUnbanner capability
+  was actually calling `/ban`.
+
 ## [2.5.0] - 2025-01-12
 
 ### Added

src/Client/BotSDKBaseClient.ts

@@ -281,11 +281,10 @@ export class BotSDKBaseClient
   }
   public async unbanUser(
     room: StringRoomID | MatrixRoomID,
-    userID: StringUserID,
-    reason?: string
+    userID: StringUserID
   ): Promise<ActionResult<void>> {
     return await this.client
-      .banUser(userID, toRoomID(room), reason)
+      .unbanUser(userID, toRoomID(room))
       .then((_) => Ok(undefined), resultifyBotSDKRequestError);
   }
   public async sendStateEvent(