Cannot import RO-Crate of an Invocation using hidden outputs

[patrick-austin]

Describe the bug
Importing an RO-Crate for a Workflow Invocation changes action_arguments from {} to true. This leads to

Workflow cannot be executed. Please resolve the following issue:
Uncaught exception in exposed API method: 

When attempting to run the re-imported workflow.

Galaxy Version and/or server at which you observed the bug
Galaxy Version: 24.1.2
Commit: 04abcd5b342a5ed1f5ac2a3c1836a18deb929fac

Also observed on materials.usegalaxy.eu (24.1.2dev0).

Browser and Operating System
Operating System: Windows
Browser: Firefox

To Reproduce
Steps to reproduce the behavior:

1. Create a workflow and hide one of the outputs
2. Run the workflow
3. Export the invocation
4. Import the invocation
5. Try to run the re-imported workflow
6. Workflow cannot be executed. Please resolve the following issue:
Uncaught exception in exposed API method:

Expected behavior
Workflow runs, and contents of the .ga for the workflow is unchanged.

Screenshots

Original workflow via .ga download:
Galaxy-Workflow-Original.txt

RO-Crate export (action_arguments is still {} in the zipped .ga file):
Invocation-of-Unnamed-Workflow-at-2024-10-15T091729087732.rocrate.zip

Re-imported workflow (action_arguments is now true), via .ga download:
Galaxy-Workflow-ReImported.txt

Additional context
Possibly related to #18927 , as it also seems like it could be a problem with workflow metadata being re-imported via the invocation RO-Crate.