bug in display of warnings at import of catalog elements

[MyPyDavid]

Description / Beschreibung

In the warnings the elements and uris are displayed but for a Question URI the Attribute URI is shown.

Expected behaviour / Erwartetes Verhalten

Warnings for questions should show the question URI

Context / Kontext

2.3.0

References / Verweise

[MyPyDavid]

merged in #1325