Propagate deflection settings on reload (#8484)

reimport_element_representations() built a fresh
ifcopenshell.geom.settings() without copying deflection_tolerance /
angular_tolerance from the IfcImportSettings it had just
constructed, and never passed geometry_library to either the
iterator() or create_shape() calls it makes. As a result, exiting
Item/edit mode (which reaches this function via
switch_representation) silently fell back to IfcOpenShell's
hard-coded mesher defaults (0.001 linear deflection, ~50x finer than
the project's default of 0.05) and the default geometry kernel,
instead of the project's configured tolerance and Geometry Library.

This made geometry visibly change quality after a no-op Tab into and
back out of edit mode, since the reload path was unintentionally far
more precise (and used a different kernel) than the initial import.
Both settings, and geometry_library, are now taken from the
IfcImportSettings instance already built at the top of the function,
so a reload matches the original import.

Refs #5685.

Generated with the assistance of an AI coding tool.

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>

src/bonsai/bonsai/tool/geometry.py

@@ -1151,6 +1151,9 @@ class Geometry(bonsai.core.tool.Geometry):
         settings.set("layerset-first", True)
         settings.set("keep-bounding-boxes", True)
         settings.set("dimensionality", ifcopenshell.ifcopenshell_wrapper.CURVES_SURFACES_AND_SOLIDS)
+        settings.set("mesher-linear-deflection", ifc_import_settings.deflection_tolerance)
+        settings.set("mesher-angular-deflection", ifc_import_settings.angular_tolerance)
+        geometry_library = ifc_import_settings.geometry_library
 
         ifc_importer = bonsai.bim.import_ifc.IfcImporter(ifc_import_settings)
         ifc_importer.file = tool.Ifc.get()
@@ -1162,7 +1165,11 @@ class Geometry(bonsai.core.tool.Geometry):
         shape = None
         if elements:
             iterator = ifcopenshell.geom.iterator(
-                settings, tool.Ifc.get(), multiprocessing.cpu_count(), include=elements
+                settings,
+                tool.Ifc.get(),
+                multiprocessing.cpu_count(),
+                include=elements,
+                geometry_library=geometry_library,
             )
         else:
             iterator = None  # For example, when switching representation of a type with no occurrences
@@ -1217,7 +1224,9 @@ class Geometry(bonsai.core.tool.Geometry):
         for element in element_types:
             if obj := tool.Ifc.get_object(element):
                 if representation := ifcopenshell.util.representation.get_representation(element, context):
-                    geometry = ifcopenshell.geom.create_shape(settings, representation)
+                    geometry = ifcopenshell.geom.create_shape(
+                        settings, representation, geometry_library=geometry_library
+                    )
                     mesh_name = tool.Loader.get_mesh_name_from_shape(geometry)
                     mesh = meshes.get(mesh_name)
                     if mesh is None: