Notification: No PLURAL and SINGULAR when user(s) comments my photo

Hello.
When ONE user comment your photo or FEW users comment your photo, system always display notification with the same language line.

I beleave it should be _PLURAL and SINGULAR variations when somebody comment.

Few or all of this:

APP_PHOTOS_COMMENTS_YOUR_PHOTO="%1$s commented on your photo"
APP_USER_PHOTOS_NOTIFICATIONS_COMMENTED_ON_YOUR_PHOTO="%1$s commented on your photo"
APP_GROUP_PHOTOS_COMMENTS_YOUR_PHOTO="%1$s commented on your photo"
APP_GROUP_PHOTOS_NOTIFICATIONS_COMMENTED_ON_YOUR_PHOTO="%1$s posted a comment on your photo"
APP_GROUP_PHOTOS_NOTIFICATIONS_COMMENTED_YOUR_PHOTO_SHARED_ON_THE_STREAM="%1$s posted a comment on the photos you shared"
APP_EVENT_PHOTOS_NOTIFICATIONS_COMMENTED_YOUR_PHOTO_SHARED_ON_THE_STREAM="%1$s posted a comment on the photos you shared"

Thanks.