Workflow cloning: Fix validation for some nodes

[paulnoirel]

Description

This PR fixes validation issues that may occur when cloning a workflow with clone_workflow_from()

Fixes # PLT-2827

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Document change (fix typo or modifying any markdown files, code comments or anything in the examples folder only)

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