Over the Christmas holiday I flew a total of four United Express segments (2x Commutair, 1x Republic and 1x Mesa). I just noticed that on my account activity, the Mesa, and Commutair flights posted as "UA Express ####", but the Republic segment posted as "Republic Air ####". Is there any reason in particular why Republic segments aren't treated as United Express? Is this just part of Republic still ramping up with their Q400 operation and it's treated as a codeshare? In the grand scheme of things it's not really important, it just looked out of place. Has anyone else seen this?