[Paraview] GetDataInformation() troubles

[Jean M. Favre]

I am having troubles with a reader plugin which works well under 3.6.2
but is missing some DataInformation under the CVS version. Specifically,
my reader produces a hierarchy of multi-blocks, so some data fields are
only stored on some datasets, and PV3.6.2 correctly associates them and
displays them as "partial".

in PV3.6.2, printing my reader.GetDataInformation().DataInformation,
each *and all* fields is displayed, and correctly marked with "IsPartial".

in PV3.7, the "partial" fields are missing, although they are read and
stuffed in memory, and consequently, I cannot used them in Display
Properties.

Did I miss some new developments which causes this side-effect?

Jean