How to save a spatial dataset

[MichaelHarmsTIB]

Hello,
I installed ckanext-spatial. It works with geospatial-view if I upload a geojson. But spatial-query doesn't works. If I create a new dataset extra data is not saved. All data is in the geojson resource file. Solr extra field is created.
So how I have to save a dataset? (Lack of: e.g. "extras": {
"ext_bbox": "-7.535093,49.208494,3.890688,57.372349")

Regards,
Michael