Jira Service Management Mail Handler adds pre-formatted text from email body to a single line

Issue Summary

Emails containing some text inside a <pre> HTML tag will render the text in one line, even though the text might contain multiple lines. This only applies to preformatted text that does not contain HTML formatting inside the <pre> tag.

Steps to Reproduce

1. Send an email containing text inside a <pre> HTML tag to the Jira Service Management Mail Handler.

Expected Results

Text inside a <pre> tag should be shown as it is in the email received by Jira, no matter if the text contains HTML formatting or not.

Actual Results

The text inside the <pre> tag is added to a single line.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available