During query running there is an error in console:
Cannot read property ... of null
at dereference.js:55
The reason is empty dataSoures during queryrunning. When it becomes null, dereference is called with null. We shouldn't call dereference when dataSources is null.
During query running there is an error in console:
The reason is empty
dataSouresduring queryrunning. When it becomesnull,dereferenceis called withnull. We shouldn't calldereferencewhendataSourcesisnull.