Fix #704

Signed-off-by: Mario Danic <mario@lovelyhq.com>

app/build.gradle

@@ -39,8 +39,8 @@ android {
         targetSdkVersion 29
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
-        versionCode 124
-        versionName "8.0.0beta2"
+        versionCode 125
+        versionName "8.0.0beta3"
 
         flavorDimensions "default"
         renderscriptTargetApi 19

app/src/main/java/com/nextcloud/talk/controllers/ChatController.kt

@@ -651,12 +651,11 @@ class ChatController(args: Bundle) : BaseController(args), MessagesListAdapter
     }
 
     override fun getTitle(): String? {
-        val charSequence = currentConversation?.displayName as CharSequence
-        return if (charSequence != null) {
-            EmojiCompat.get().process(charSequence).toString()
-        } else {
-            ""
+        currentConversation?.displayName?.let {
+            return EmojiCompat.get().process(it as CharSequence).toString()
         }
+
+        return ""
     }
 
     public override fun onDestroy() {