fix: prevent TypeORM subscribers from calling itself over and over (#…

…1215)

When a series is requested, an event is triggered by TypeORM after the request status has been
updated. The function executed by this event updated the request status to "PROCESSING", even if the
request already had this status. This triggered the same function once again, which repeated the
update, in an endless loop.

server/entity/MediaRequest.ts

@@ -719,7 +719,8 @@ export class MediaRequest {
       // Do not update the status if the item is already partially available or available
       media[this.is4k ? 'status4k' : 'status'] !== MediaStatus.AVAILABLE &&
       media[this.is4k ? 'status4k' : 'status'] !==
-        MediaStatus.PARTIALLY_AVAILABLE
+        MediaStatus.PARTIALLY_AVAILABLE &&
+      media[this.is4k ? 'status4k' : 'status'] !== MediaStatus.PROCESSING
     ) {
       media[this.is4k ? 'status4k' : 'status'] = MediaStatus.PROCESSING;
       mediaRepository.save(media);