Bad parsing with attribute splices

[J-Cake]

The following snippet produces corrupt markup:

span attr=(r#"Hello"World"#) {}
div {}

Results in the following markup:

<span attr="hello&quot;world" div></span>

The resulting visuals are ... beyond broken :/

[lambda-fairy]

Thanks for reporting. We changed attribute syntax recently so I wonder if that's related. Alternatively, does #412 fix the bug?