Behavior of the element's attributes changed after upgrading to 6

[liram11]

Hi, I noticed a strange difference in how haml treats attributes after upgrading from 5.2.2 to 6.0.7.

For example, this line:

%tagname{"data" => {"required" => "true"}, "data-required"=>nil} Contents

Will produce different results.

5.2.2:

<tagname>Contents</tagname>

6.0.7:

<tagname data-required="true">Contents</tagname>

I didn't find anything about that change in the changelog. Is it expected behavior?

[k0kubun]

It's an interesting finding.

As of the current version, I'd like to say that specifying the same attribute name multiple times is not supported in Haml 6. For example, I guess there's no valid use case to do %tagname{ :data => true, "data" => false }, and they look like the same thing to me.

You might have kindly minimized the example code for the issue-reporting purpose, which was indeed helpful, but I'd like to understand why you'd like to do this before re-introducing its support. Did your template really need to leverage this feature?

For now, I just added a changelog entry about this.