Unfortunately there's no way of cloning a project in Cloud. My suggestion in this case would be to export issues from another project via CSV, and them import it into this project to test the workflow. Please see Importing Data from CSV for more details about this.
Hope this helps.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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