Changing multi day views ignores day-display-start-hour

[emg36]

Changing views from a view (month or agenda) to a multiday view (week, 3 day and single day) works fine. By default the start hour is 7.

But going from month to week to a 3 day view will just go to hour 0. Going back to week goes back to the correct start hour. Month to 3 day view has the correct start hour but then the other views revert back to 0 again.

This can be seen in the demo linked on github. Changing days forwards or back kicks in the correct start hour for that view but if you move away if reverts to 0 when revisited.