This tests that leading whitespace followed by soft/hard linebreaks.

foobarfoobar foobi
foobar

foobarfoobar foobi 
foobar
foobarfoobar foobi 

foobar
foobarfoobar foobi 
 
foobar

foobarfoobar foobi 
foobar
foobarfoobar foobi 

foobar
foobarfoobar foobi 
 
foobar

foobarfoobar foobi
foobar