Scripted Field (Date of First Transition) exported as XML would show invalid value

When exporting Scripted Field (Date of First Transition) as XML format, the value would show as <![CDATA[ $xmlutils.escapeForCdata($value.toString()) ]]>, making the date/time unreadable.

Steps to Reproduce

1. Create a new Scripted Field (Date of First Transition) and configure it to a certain Status (e.g.: In Review)
2. Add it to a Screen of a Project
3. Go to an Issue in the Project using the Screen
4. Transition the Issue into the configured Status
   • Note the Scripted Field is now populated
5. Go to Issue Navigator, search for the Issue, set the 'Columns' to display the Scripted Field
6. Export the Issue as XML

Expected Behaviour

The Scripted Field value in the exported XML should display the date/time value

Actual Behaviour

The Scripted Field value in the exported XML displays as <![CDATA[ $xmlutils.escapeForCdata($value.toString()) ]]>

Note

This bug is occurring in certain versions of Jira. Has been tested to occur in Jira 8.13.3 and 8.15.0. The bug has been tested to not occur in Jira 8.0.0.