Fix regression in last release where the file was loaded twice during import, which led to increased import times

src/ifcblenderexport/blenderbim/bim/import_ifc.py

@@ -1104,7 +1104,8 @@ class IfcImporter:
 
     def set_ifc_file(self):
         bpy.context.scene.BIMProperties.ifc_file = self.ifc_import_settings.input_file
-        IfcStore.path = "self.ifc_import_settings.input_file"
+        IfcStore.file = self.file
+        IfcStore.path = self.ifc_import_settings.input_file
 
     def calculate_unit_scale(self):
         self.unit_scale = ifcopenshell.util.unit.calculate_unit_scale(self.file)
@@ -1527,7 +1528,6 @@ class IfcImporter:
         return parent @ self.get_axis2placement(plc.RelativePlacement)
 
     def set_default_context(self):
-        ContextData.load()
         for subcontext in self.file.by_type("IfcGeometricRepresentationSubContext"):
             if subcontext.ContextIdentifier == "Body":
                 bpy.context.scene.BIMProperties.contexts = str(subcontext.id())

src/ifcblenderexport/blenderbim/bim/module/context/data.py

@@ -18,10 +18,7 @@ class Data:
         cls.contexts = {}
         for context in file.by_type("IfcGeometricRepresentationContext", include_subtypes=False):
             subcontexts = {}
-            # See bug #1224 for why we don't use HasSubContexts
-            for subcontext in file.by_type("IfcGeometricRepresentationSubContext"):
-                if subcontext.ParentContext != context:
-                    continue
+            for subcontext in context.HasSubContexts:
                 subcontexts[int(subcontext.id())] = {
                     "ContextType": subcontext.ContextType,
                     "ContextIdentifier": subcontext.ContextIdentifier,