cubicweb-datacat #5714879 datacat cwsource-imports are marked as failed although they succeed [done]

When adding an RDF DCAT source for datasets (namely open-data.europa.eu), all data imports are marked as failed in the cwsource-imports tab.

Errors are like the following:

Unable to parse found URI: http://ec.europa.eu/competition/odp_datasets/comp_tra_sa_01

And indeed, such URIs are invalid.

Maybe this should be marked as Warnings.

prioritynormal
typebug
done in<not specified>
load left0.000
closed by#facad3b7c608 Use warning instead of error for problems during data import
patchUse warning instead of error for problems during data import [applied]