Describe the bug
In the Omnivore action "Get Article", a prop supposed to list users seems to always return "unexpected server error".

To Reproduce

1. Create an action step using the "Get Article" component;
2. Attempt to load the list of users in the first prop.

Expected behavior
The list of users should be loaded.

Screenshots

Additional context
I've already checked the GraphQL query for listing users, and it seems to match the schema correctly, so I've sent a message to Omnivore support regarding this.

This issue is being created so that #9898 can be released without losing sight of this bug, since it is unrelated to that issue and happens in the currently live component.