H-rule/setext-header ambiguity

It should be explicit that setext headers have a higher precedence than horizontal rules.
According to section 4.1 and example 4, this gives a paragraph followed by a HR:

aaa
---

+++ mytskine [Sep 03 14 21:24 ]:

It should be explicit that setext headers have a higher precedence than
horizontal rules.

Yes, thank you. There is an example (Example 20) to this effect,
but there should be a clear statement, such as the one we have
for horizontal rules and list items.

Would you mind submitting an issue on the repository?