Session target doesn't increment when Editing Scrivenings?

When Editing Scrivenings, the Draft Target field in the Project Targets pane updates when I add new words, but the Session Target field does not. The Session Target field only updates when I am editing a single document.

Are others seeing this behavior?

Given the date of the original posting, this reply is probably irrelevant. But in case anyone else checks: This behavior appears to be fixed in the latest (1.07) beta.