The problem was that during class assignment, it was setting the object name and `is_renaming` flag but only then linking to IFC. Since object wasn't linked to IFC, name callback wasn't triggered and `is_renaming` wasn't reset and first rename wouldn't work.
Now it's just not setting the flag if object is not linked to IFC, as there's no callback then and don't need to protect from it.
Use temp_override or modify selection not to modify some object by accident, because this operator can also be called not from UI but by providing `object` argument.
Previously, objects with 2D bounding boxes outside the view were still being added. This issue is now resolved.
Additionally, implement simple AABB detection to check if the bounding box is within the viewport.
Use explicit element argument instead of props.representation_obj as representation_obj may not be there (e.g. removing rep items without item mode) or some other object might be in item mode and then booleans won't be unmarked.
Found the issue because of the failing test 🥳
It led to confusion when object A would be in Item Mode and you open properties for object B and try to show rep items for B and UI would be unresponsive.
As it's probably unintuitive (user can't see the linked model in viewport but we still load it) and user then have no option to keep model in Links but keep it unloaded.
Also producing traceback below if linked file is missing.
```
Error: Python: Traceback (most recent call last):
File "\bonsai\bim\module\drawing\operator.py", line 299, in execute
linework_svg = self.generate_linework(context)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "\bonsai\bim\module\drawing\operator.py", line 828, in generate_linework
IfcStore.session_files[link.name] = ifcopenshell.open(link.name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "\ifcopenshell\__init__.py", line 162, in open
raise FileNotFoundError(f"File does not exist: '{path}'.")
FileNotFoundError: File does not exist: 'D:\Dropbox\GitLab\OD_Library\BIM\OD_Revit_Template - 2020 - IFC4 - Reference View.ifc'.
```
Andrej730
