Text format notifications from Service Desk do not include the full description, only the word 'true'.

Summary

Service Desk customer that have text as their default outgoing email format are receiving the word "true" in the description of the issue via email.

Steps to Reproduce

1. Set the default outgoing email format to txt
2. Create an issue that fires a notification to a user utilizing Service Desk

Expected Results

Email should be:

Summary: Testing
Key: CSP-4
URL: https://xxxxx.atlassian.net/browse/CSP-4
Project: Customer Service Project
Issue Type: Support
Reporter: xxxxx@gmxxxxxx.com
true

Actual Results

Summary: Testing
Key: CSP-4
URL: https://xxxxx.atlassian.net/browse/CSP-4
Project: Customer Service Project
Issue Type: Support
Reporter: xxxxx@gmxxxxxx.com
Issue details should be here not in full.

Notes

So far I have only seen this in JIRA Service Desk, regular notifications in JIRA do not seem to be affected.

Workaround

Change the default outgoing email format to HTML