User required to hit <ENTER> after changing flexibility

[WestonThayer]

1. Create a BlokGroup
2. Select a child object in it
3. In the Bloks panel, put a numeric value in the flexibility text area
4. Select a different child object

ACTUAL: Flexibility is applied to the child object selected in step 4
EXPECTED: Flexibility is applied to the child object you had selected when you entered the numeric value

The workaround is to press to commit the flexibility value, or put focus somewhere else in the Bloks panel so that flexibility changed event fires before Illustrator's selection moves away from the intended art.

I looked into tracking what the previously selected art was so that we can retroactively update it, but that can be very problematic. Maybe a better fix is to use a modal dialog that forces you to hit or maybe use a numeric up/down.