I'm working a JIRA plan (Advanced Roadmap) and I seem to be having a issue with custom field value data.
When adding a new issue so its staged in the plan (not committed/saved in JIRA), no values are returned to any custom fields which I've included in the plan.

As soon as the new issue is committed into JIRA those values are then available to choose from.
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Is this normal behaviour or is something broken?