Relevant selection (join transformation) does not make use of local flag

Observation

New position change through join transformation (relevant selection) were happening a day early.

The windows appear to be the only thing that uses the local flag. However, there is a fair bit of logic in the selections that should have the local flag applied. See RecentSelection, RelevantSelection and NextPlacementSelection.

Task

1. Create unit tests for all boundary conditions around date and time for the above mentioned selections.
2. Fix up broken unit tests.