name: A closing marker inside a blockquote closes a region opened outside one
why: The line form is unscoped by decision -- it exempts the next paragraph in whatever container that paragraph turns out to be in -- and the region form matches it rather than inventing a second rule about containers. A marker that counted only against its own container would make a region silently unclosable from one line further in.
paragraphs_unwrapped: 1
line_breaks_removed: 1
