Nodes require a 'username' field, when they are supposed to fall back to project.ssh.user setting

Right now if you use an external nodes file, that file is required to pass a 'username=' field for each host. Without this, the doc states that RunDeck will fall back to a project-setting and then a rundeck-setting for the username. This does not work right now, and throws this error:

Failed dispatching to node bastion-20417898.xxx.com: com.dtolabs.rundeck.core.execution.ExecutionException: Username must be set to connect to remote node 'bastion-20417898.xxx.com'
07:08:06 Execution failed on the following 1 nodes: {bastion-20417898.cloud.nextdoor.com=[Workflow : exception: com.dtolabs.rundeck.core.execution.workflow.WorkflowStepFailureException: Step 1 of the workflow threw exception: Execution failed on the following 1 nodes: {bastion-20417898.xxx.com=Error dispatching command to the node: com.dtolabs.rundeck.core.execution.ExecutionException: Username must be set to connect to remote node 'bastion-20417898.xxx.com'}]}