AttributeRef display broken?
As best I can tell, smtk:master no longer displays AttributeRef items in .sbt files. An example file is attref.sbt Loading this file in either modelbuilder or qtAttributePreview, you will see an empty view for the tab where the AttributeRef should be.
Looking at the code, the first symptom is in qtAttributeRefItem.cxx::createItemWidget() and the line:
if (info.itemAs<smtk::attribute::ReferenceItem>() == nullptr)
Because the AttributeRef item is a different type (smtk::attribute::Item::AttributeRefType), this code aborts creating the item widget. So it seems that something got caught up in the transition to component references. Is there new template file syntax for attribute references? (Side note: converting to attribute file version 3 produces same result.)