Condition on mapping when subject has function fails

[pheyvaer]

Issue type: 🐛 Bug

Description

Condition on mapping when subject has function fails.

Steps

prefixes:
  grel: http://users.ugent.be/~bjdmeest/function/grel.ttl#
  idlab-fn: http://example.com/idlab/function/

mappings:
  person:
    sources:
     - [input.csv~csv]
    s:
      function: grel:array_join
      parameters:
        - [grel:p_array_a, "http://example.org/"]
        - [grel:p_array_a, "$(id)"]
    condition:
      function: idlab-fn:notEqual
      parameters:
        - [grel:valueParameter, "$(id)"]
        - [grel:valueParameter2, ""]
    po:
      - [a, schema:Person]