yes, I was using tabs in a private project…

Sources/VLCPlaybackController.m

@@ -385,8 +385,8 @@
     if ([self.delegate respondsToSelector:@selector(presentingViewControllerShouldBeClosed:)])
         [self.delegate presentingViewControllerShouldBeClosed:self];
 
-	[MPNowPlayingInfoCenter defaultCenter].nowPlayingInfo = nil;
-	[self unsubscribeFromRemoteCommand];
+    [MPNowPlayingInfoCenter defaultCenter].nowPlayingInfo = nil;
+    [self unsubscribeFromRemoteCommand];
 }
 
 - (void)_savePlaybackState