Graphql hierarchical query hangs on version 21.03.0

Hi @jtescher and @roschaefer ,

Welcome to Dgraph Community !!

We had made changes to how graphql results are encoded in Dgraph in January and the new encoding has this issue.

This issue was reported earlier and has been fixed in master and upcoming 21.03.1 release with the following PR, Fix(GraphQL): Fix GraphQL encoding in case of empty list by vmrajas · Pull Request #7726 · dgraph-io/dgraph · GitHub .

Related Post: Certain GraphQL Queries Hang

Regarding tags, we have noted down this feedback. Latest refers to the latest release branch. Maybe we can clarify this in Dgraph docs.