The code introduced in version 2.9 to handle missing values in vocabularies and the adaption to sources in 3.0.3 did not work for collections because it was not able to to handle values which are collections of values.
Adapted the code and added a test for the collections.
The code introduced in version 2.9 to handle missing values in vocabularies and the adaption to sources in 3.0.3 did not work for collections because it was not able to to handle values which are collections of values.
Adapted the code and added a test for the collections.