Program: 13608
Project: 13608
Buggy source:
void updateNotificationSuccessForMedia(@NonNull List<MediaModel> mediaList,@NonNull SiteModel site){
  if (mediaList != null && !mediaList.isEmpty()) {
    String snackbarMessage=buildSnackbarSuccessMessageForMedia(mediaList.size());
    EventBus.getDefault().post(new UploadService.UploadMediaSuccessEvent(mediaList,snackbarMessage));
  }
  if (!WordPress.sAppIsInTheBackground) {
    return;
  }
  AppLog.d(AppLog.T.MEDIA,"String_Node_Str");
  NotificationCompat.Builder notificationBuilder=new NotificationCompat.Builder(mContext.getApplicationContext());
  long notificationId=getNotificationIdForMedia(site);
  Intent notificationIntent=new Intent(mContext,MediaBrowserActivity.class);
  notificationIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
  notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  notificationIntent.putExtra(WordPress.SITE,site);
  notificationIntent.setAction(String.valueOf(notificationId));
  PendingIntent pendingIntent=PendingIntent.getActivity(mContext,(int)notificationId,notificationIntent,PendingIntent.FLAG_ONE_SHOT);
  notificationBuilder.setSmallIcon(R.drawable.ic_my_sites_24dp);
  notificationBuilder.setColor(mContext.getResources().getColor(R.color.blue_wordpress));
  String notificationTitle=buildSuccessMessageForMedia(mediaList.size());
  String notificationMessage=TextUtils.isEmpty(site.getName()) ? mContext.getString(R.string.untitled) : site.getName();
  notificationBuilder.setContentTitle(notificationTitle);
  notificationBuilder.setContentText(notificationMessage);
  notificationBuilder.setContentIntent(pendingIntent);
  notificationBuilder.setAutoCancel(true);
  if (mediaList != null && !mediaList.isEmpty()) {
    ArrayList<MediaModel> mediaToIncludeInPost=new ArrayList<>(mediaList);
    Intent writePostIntent=new Intent(mContext,EditPostActivity.class);
    writePostIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
    writePostIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    writePostIntent.putExtra(WordPress.SITE,site);
    writePostIntent.putExtra(EditPostActivity.EXTRA_IS_PAGE,false);
    writePostIntent.putExtra(EditPostActivity.EXTRA_INSERT_MEDIA,mediaToIncludeInPost);
    writePostIntent.setAction(String.valueOf(notificationId));
    PendingIntent actionPendingIntent=PendingIntent.getActivity(mContext,RequestCodes.EDIT_POST,writePostIntent,PendingIntent.FLAG_CANCEL_CURRENT);
    notificationBuilder.addAction(0,mContext.getString(R.string.media_files_uploaded_write_post),actionPendingIntent);
  }
  doNotify(notificationId,notificationBuilder.build());
}

Fixed version (ground truth):
void updateNotificationSuccessForMedia(@NonNull List<MediaModel> mediaList,@NonNull SiteModel site){
  if (mediaList != null && !mediaList.isEmpty()) {
    String snackbarMessage=buildSnackbarSuccessMessageForMedia(mediaList.size());
    EventBus.getDefault().postSticky(new UploadService.UploadMediaSuccessEvent(mediaList,snackbarMessage));
  }
  if (!WordPress.sAppIsInTheBackground) {
    return;
  }
  AppLog.d(AppLog.T.MEDIA,"String_Node_Str");
  NotificationCompat.Builder notificationBuilder=new NotificationCompat.Builder(mContext.getApplicationContext());
  long notificationId=getNotificationIdForMedia(site);
  Intent notificationIntent=new Intent(mContext,MediaBrowserActivity.class);
  notificationIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
  notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  notificationIntent.putExtra(WordPress.SITE,site);
  notificationIntent.setAction(String.valueOf(notificationId));
  PendingIntent pendingIntent=PendingIntent.getActivity(mContext,(int)notificationId,notificationIntent,PendingIntent.FLAG_ONE_SHOT);
  notificationBuilder.setSmallIcon(R.drawable.ic_my_sites_24dp);
  notificationBuilder.setColor(mContext.getResources().getColor(R.color.blue_wordpress));
  String notificationTitle=buildSuccessMessageForMedia(mediaList.size());
  String notificationMessage=TextUtils.isEmpty(site.getName()) ? mContext.getString(R.string.untitled) : site.getName();
  notificationBuilder.setContentTitle(notificationTitle);
  notificationBuilder.setContentText(notificationMessage);
  notificationBuilder.setContentIntent(pendingIntent);
  notificationBuilder.setAutoCancel(true);
  if (mediaList != null && !mediaList.isEmpty()) {
    ArrayList<MediaModel> mediaToIncludeInPost=new ArrayList<>(mediaList);
    Intent writePostIntent=new Intent(mContext,EditPostActivity.class);
    writePostIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
    writePostIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    writePostIntent.putExtra(WordPress.SITE,site);
    writePostIntent.putExtra(EditPostActivity.EXTRA_IS_PAGE,false);
    writePostIntent.putExtra(EditPostActivity.EXTRA_INSERT_MEDIA,mediaToIncludeInPost);
    writePostIntent.setAction(String.valueOf(notificationId));
    PendingIntent actionPendingIntent=PendingIntent.getActivity(mContext,RequestCodes.EDIT_POST,writePostIntent,PendingIntent.FLAG_CANCEL_CURRENT);
    notificationBuilder.addAction(0,mContext.getString(R.string.media_files_uploaded_write_post),actionPendingIntent);
  }
  doNotify(notificationId,notificationBuilder.build());
}