When using an RSS feed for content for an emergency alert feed, when the RSS feed is empty, the emergency alert template is not active. However, when using an XSLT it apparently creates children when the feed is empty because it has been reported that the emergency alert template is active on empty feeds when this occurs.
When using an RSS feed for content for an emergency alert feed, when the RSS feed is empty, the emergency alert template is not active. However, when using an XSLT it apparently creates children when the feed is empty because it has been reported that the emergency alert template is active on empty feeds when this occurs.
See https://github.com/concerto-addons/concerto-emergency/issues/18
It should not create any children when the feed is empty for any display type.