Browsing MR commit by commit is hard
When I do code review, I like to review the code commit by commit, because it is far more understandable that way. For each commit, I read the hopefully meaningful commit message, and then I read the code with the message in mind, and see if I understand it. The problem is, once you have clicked on the first commit of an MR, there is no link to the following (or previous commit). Urls are not contextualized, so when you are on the commit page, you do not know that you are in an MR.
This encourages making MRs consisting of one big commit, which is bad practice.