feat: add clearing cache to switchUser

src/client/Client.js

@@ -424,6 +424,13 @@ class Client extends BaseClient {
    */
   async switchUser(options) {
     await this.logout();
+    // There is a better way to code this but it's a temp fix - TheDevYellowy
+    await this.clearCache(this.channels.cache);
+    await this.clearCache(this.guilds.cache);
+    await this.clearCache(this.relationships.cache);
+    await this.clearCache(this.sessions.cache);
+    await this.clearCache(this.users.cache);
+    await this.clearCache(this.voiceStates.cache);
     if (typeof options == 'string') {
       await this.login(options);
     } else {
@@ -570,6 +577,7 @@ class Client extends BaseClient {
     this.sweepers.destroy();
     this.ws.destroy();
     this.token = null;
+    this.password = null;
   }
 
   /**
@@ -583,7 +591,7 @@ class Client extends BaseClient {
         voip_provider: null,
       },
     });
-    this.destroy();
+    await this.destroy();
   }
 
   /**
@@ -765,6 +773,16 @@ class Client extends BaseClient {
     }
   }
 
+  /**
+   * Clear a cache
+   * @param {Collection} cache The cache to clear
+   */
+  async clearCache(cache) {
+    await cache.forEach(async (V, K) => {
+      await cache.delete(K);
+    });
+  }
+
   /**
    * Sweeps all text-based channels' messages and removes the ones older than the max message lifetime.
    * If the message has been edited, the time of the edit is used rather than the time of the original message.