Formatting error in JSON Written Books

When I paste the following into a command block, activate it and open the book:

/give @p written_book 1 0 {pages:["[\"\",{\"text\":\"Heading\n\n\",\"bold\":\"true\",\"underlined\":\"true\"},{\"text\":\"Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor.\"}]"],title:"Bug Example",author:LiquidSonichu}

The first line of the paragraph is bold and underlined, even though no formatting is specified for it. It also spills off the edge of the page, unlike when I format it directly. The rest of the paragraph is plain, as expected.