in src/main/scala/com/gu/mobile/content/notifications/lib/ContentAlertPayloadBuilder.scala [88:93]
private def contentTitle(followableTag: List[Tag], topics: List[Topic]): Option[String] =
if (topics.toSet.intersect(topicsWithoutPrefix).nonEmpty || followableTag.isEmpty) {
None
} else {
Some(followableTag.map { ft => ft.webTitle }.mkString(", "))
}