VDB does not have MXD based properties

After adding a custom MXD (see TEIIDDES-3151), if you import a DDL that makes use of the MXD properties, the model will show the properties in "Extensions" in left side panel. However, when creating a .vdb or dynamic VDB these properties not exported at all in the resulting VDB

Attached a sample DDL file, but same would apply if I use Teiid Connection Importer too.