enthought/enaml — pull request #119 by sccolbert (2012-03-23 19:18:33+00:00)
Title: don't apply a new layout strength to the vbox contraint in form, or nest...

...ed containers won't layout properly.

This fixes a problem with the Form layout where one of the widgets is a container with its own vbox/hbox constraints would not layout properly. The reason is that apply a layout strength to a deferred constraints object assigns that strength to *all* of the sub-constraints, which destroys the relationships on the child components.