After the interface change, when I click on the compare link, both the outgoing and incoming tab displays outgoing changes. My team has recently started learning Mercurial and BitBucket, and they use the incoming tab to determine if they need to pull down the latest copy of code. They then copy the hg commands displayed. I'm afraid they are going to think they are up to date, and start creating merge conflicts between each other.
I have tried this on multiple repositories, and have the same issue with each one.