Interestingly,
This feature introduced a minor Remarkup render regression (if it could be considered so), since we do not put anymore target="_blank" as default for <a href="mailto:"> links... and this was an historical unit test, so, probably desired to have "external" links for mails.
The regression appeared very probably after this change:
rP328aee033fbd: isSelfURI: fix anchors and relative URIs (that are "self" indeed)
D25555: isSelfURI: fix anchors and relative URIs (that are "self" indeed)
So now, mailto:alincoln@example.com is always considered an internal link. It should be considered external.
Steps to reproduce
In Remarkup field, write this, and inspect element:
[[ mailto:info@asd.com]]
What happens:
<a href="mailto:info@asd.com" class="remarkup-link" rel="noreferrer">info@asd.com</a>
What should happen instead accordingly to old unit tests:
<a href="mailto:info@asd.com" class="remarkup-link" target="_blank" rel="noreferrer">info@asd.com</a>