Wiki Markup Formatting lost on Issue List Templates

Description

I've created a new Issue List Template using the default Issue List Theme (1) and didn't change any code.
I've then selected some arbitrary issues in the issue navigator and am sending a mail using the Email Button.
I've then added some text to the mail body (2).

The mail i'm getting (3) is only a copy of the entered body text with all line breaks stripped and not the expected markup formatted text block.

Environment

None

Preliminary Test Cases

None

Assignee

Tibor Hegyi

Reporter

László Csekő

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Access to limited visibility issues

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Module Dependency

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Fix versions

Priority

Major
Configure