Facet.filter() implementations broad-phase query with
ifc_file.by_type(), then check isinstance(elements, list) to decide
whether a previous facet already narrowed the candidate set. In
v0.9.0, file.by_type() returns a tuple instead of a list, so that
check silently failed and every facet after the first re-scanned the
whole model instead of the already-narrowed (possibly empty) set.
This let a prohibited Entity+Attribute applicability match instances
of the wrong class, e.g. an IfcSlab satisfying an "IFCWALL" Entity
facet's chain. Accept tuples too, matching how by_type() results are
actually returned now.
Petru Conduraru
df3d07e952