Fix setting video subtitle in URL

client/src/app/+videos/+video-watch/video-watch.component.ts

@@ -797,6 +797,8 @@ export class VideoWatchComponent implements OnInit, OnDestroy {
       startTime,
       stopTime: urlOptions.stopTime,
 
+      subtitle: urlOptions.subtitle,
+
       embedUrl: video.embedUrl,
       embedTitle: video.name,
 

client/src/assets/player/shared/peertube/peertube-plugin.ts

@@ -115,6 +115,8 @@ class PeerTubePlugin extends Plugin {
           return
         }
 
+        if (this.currentSubtitle === showing.language) return
+
         this.currentSubtitle = showing.language
         saveLastSubtitle(showing.language)
         savePreferredSubtitle(showing.language)