NPE is thrown when having the Dataset custom field in the Test creation screen

When trying to import Execution results using REST API, a NPE is thrown when having the custom field "Dataset values" associated with the creation screen of a Test.

How to reproduce

1. Add the custom field "Dataset values" to the "Test issue type" creation screen
2. Try to import generic execution results (that will result in test creation)

Actual result/Attachments

Workaround
Remove the Dataset values custom field for all screens.

Note that associating this custom field to the screens will not bring any extra features and removing, it will not remove any feature.