workflow_job_template: not accepting empty value for inventory

[kk-at-redhat]

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Bug Summary

which would be required to remove the setting

AWX version

4.6.7

Select the relevant components

• UI
• UI (tech preview)
• API
• Docs
• Collection
• CLI
• Other

Installation method

docker development environment

Modifications

no

Ansible version

2.15.13

Operating system

RHEL9

Web browser

No response

Steps to reproduce

ansible -m ansible.controller.workflow_job_template -a '{"name": "Workflow B", "workflow_nodes": [{"identifier": "1ca40111-f92b-435e-bff2-b33edd455941", "unified_job_template": {"name": "Template C", "type": "job_template"}, "inventory": "Dynamic C"}]}' localhost

localhost | CHANGED => {
"changed": true,
"id": 18,
"node_creation_data": [
.....

ansible -m ansible.controller.workflow_job_template -a '{"name": "Workflow B", "workflow_nodes": [{"identifier": "1ca40111-f92b-435e-bff2-b33edd455941", "unified_job_template": {"name": "Template C", "type": "job_template"}, "inventory": ""}]}' localhost

Expected results

localhost | CHANGED => {
"changed": true,
"id": 18,
"node_creation_data": [
.....

Actual results

localhost | FAILED! => {
"changed": false,
"msg": "Request to /api/v2/inventories/ returned 11 items, expected 1",
"query": null,
.....

Additional information

No response

[PabloHiro]

Valid issue, thank you! Indeed, creating a workflow_job_template through the API does not require an inventory, so the collection should not require one either.