When a user creates a new email message on the platform within a channel by choosing "+ New Message" within the Inbox view if the client replies the system does not treat that as a reply and attempt to route the message back to the same agent that started it, instead it routes to anyone assigned to the category\skill. We would prefer it attempt to route back to the same agent that started the email interaction using the "interventiontarget"\"threadtarget" step of the routing strategy for the time period defined for that step, then move on to the "default_target" step if that agent does not become available in the time specified.