The @lazy_str macro behaves differently from ordinary strings when using the line continuation character \:

lstr = lazy"hello \
       world"       # == "hello \\\n       world"
str  = "hello \
       world"       # == "hello world"

Apart from interpreting the line-continuation character as a "raw" backslash (and consequently also inserting a line-break), lazy"..." also doesn't ignore the white-space on the following line. This seems unintended and undesirable.