DMS plugin does not work

[sjib]

We cannot create multi-documents using the DMS Plugin 0.4.3, together with QGIS 3.34.4-Prizren.

for details see teksi/district_heating#98
and teksi/wastewater#597

[sjib]

@ponceta Can you follow- up on this please!

[sjib]

@domi4484 Any idea why this got broken?

[ponceta]

@sjib I had a feedback yesterday coming from @jpdupuy on QGIS 3.40.

It looks like the issue was mainly on a deprecation of polymorphic relations QGIS Side rather than a plugin issue.

I'll test and adapt what's necessary and give feedbacks here.

[ponceta]

teksi/wastewater#677 I can confirm there's something either wrong or badly configured with polymorphic relations.