Line breaks should interrupt "sticky" changers.
In the newest version of Harlowe, a feature was introduced where a variable is considered attached to a hook even if there are space in between, like so:
$var [ some text here ]
However this seems to persist even if there are line breaks, so for example the following code:
(set: $health to 100) (set: $mana to 100)
Health = $health
Mana = $mana
[ some effect ]<effect|
Will produce an error that a number cannot be attached to a hook, because it sticks $mana
to the named hook below.