haml plain text formatting with line breaks and unescaped text

email.text.haml

:plain
  #{title}

  look - this preserves the whitespace above
  also note that title is unescaped because of :plain

\
the "\" in the above line also adds a blank line

no blank line will be rendered above this one
#{raw title} is another way to include unescaped values

:plain

  the blank line above won't be added (weird)

  but the blank line between will