Catch common error with false ternary

[roryabraham]

If you have a false ternary like this:

${{ some_boolean_expression && value_if_true || value_if_false }}

but you (foolishly) include something that may be falsy as the value_if_true, then the false ternary will end up returning value_if_false even if some_boolean_expression is true. It would be great if this package could identify and catch this error