Support A/B Test Remails
Allow A/B test to be sent more than once via the remail function.
Currently, using the remail option on A/B test messages only sends only One of the messages (A, B or X) in the remail, rather than actually remailing the multi-message test. The process of 'manually' creating segments for the recipients of the original splits, copying the original messages, and scheduling all of those messages individually in order to do a multi-send A/B/X test is a very time consuming and error prone task.
Ryan D commented
Something to note here, the audiences in the remail should mirror those in the original test. So recipients of message A in the first send will also get version A in the remail.