Review slider is set to one revision after reviewing newly added file

While doing a code review containing several files (modified and added), if I click on a modified file right after reviewing a newly added file, the revision slider is set to display only one revision, instead of displaying a diff for several revisions. Please see attached image.
It would be nice if the application remembered the revision range I set to review, and keep this setting through the entire review, even if it cannot be applied to some of the files.