The extended occupancy information (e.g. `COM2` instead of only `COM`) needs to be used during the exposure import
Currently, the import_exposure() function takes the occupancy type of each asset from the field occupancy in the CSV files. However, the assets are sometimes augmented with additional information like the specification of commercial entities (e.g. Hotels, Offices, Trade) or more specific occupancy tags in the taxonomy strings (e.g. IND6). These information should be now used and more detailed occupancy descriptions added to the reference assets where available.
The most simple implementation is that the field occupancy is ignored if the taxonomy string already contains an occupancy tag. The combination of COM in the occupancy field with further specifications should be handled in a preprocess and the respective occupancy attribute should be put in the occupancy field of the CSV files.