Re-opening previous default session involves opening a different session first

When Qt Creator starts up the "default" session is flagged as active (checked).

This is empty, and appears to be by design to force the user the make the selection.

However, if the user wants the projects that were previously in the default session, selecting the (already) checked default session has no effect.

However, the user can select a different session then re-select the default session - and this does restore the projects from last time.

Perhaps this is the workaround due to the other design decisions, but it's a little unintuitive.