Fix audio track similar comparison for IDs.

Author: FireMasterK

extractor/src/main/java/org/schabi/newpipe/extractor/stream/AudioStream.java

@@ -25,6 +25,7 @@
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import java.util.Objects;
 
 public final class AudioStream extends Stream {
     public static final int UNKNOWN_BITRATE = -1;
@@ -314,7 +315,8 @@ private AudioStream(@Nonnull final String id,
     @Override
     public boolean equalStats(final Stream cmp) {
         return super.equalStats(cmp) && cmp instanceof AudioStream
-                && averageBitrate == ((AudioStream) cmp).averageBitrate;
+                && averageBitrate == ((AudioStream) cmp).averageBitrate
+                && Objects.equals(audioTrackId, ((AudioStream) cmp).audioTrackId);
     }
 
     /**