When autofocus on filter change, and a sequence starts right after a meridian flip,
the align and autofocus were both activated, and then competed for the same camera.
This fixes that issue.

try to get a meridian flip running right after a sequence is completed and another starts with a different filter.
Make sure auto-focus-with-filter-change is set.
This should wait on the autofocus until the meridian flip's alignment is done.
Previously the autofocus started up together with the alignment.