Incorrect export of mappings 'Test Plan' and 'Test Environments' when the fields are empty

Description
Incorrect export of mappings 'Test Plan' and 'Test Environments' when the fields are empty

How to reproduce

1. Create a Test Execution leaving the fields 'Test Plan' and 'Test Environments' empty
2. Create a template to export these fields
3. Export this template from the recently created Test Execution

Actual result/Attachments
When empty these fields export as '[]'

When exporting as XML, the square brackets are also present

<customfield id="customfield_10135" key="com.xpandit.plugins.xray:test-environments-custom-field">
<customfieldname>Test Environments</customfieldname>
<customfieldvalues>
<customfieldvalue>[]</customfieldvalue>
</customfieldvalues>
</customfield>

</customfieldvalues>
</customfield>
<customfield id="customfield_10137" key="com.xpandit.plugins.xray:test-plan-custom-field">
<customfieldname>Test Plan</customfieldname>
<customfieldvalues>
<customfieldvalue>[]</customfieldvalue>
</customfieldvalues>
</customfield>

Expected result
Empty fields should export empty

Version

• Jira 10.3.10
• Xray DC 8.4.0