Can't set cell properties by script (or: cannot see them ...)

[klayoutmatthias]

Please see here for details:
https://www.klayout.de/forum/discussion/2552

[klayoutmatthias]

The problem appears after reading certain OASIS files (with property forward references). The OASIS reader uses the property map in a special way, creating non-unique property IDs. The property map needs to take care of that properly.