Incorrect call to autoBoundAttributes.includes inside attributeChangedCallback prevents attribute-property syncing

[Yavuz Tor]

When an attribute is set using element.setAttribute(..), its auto-bound property is not updated properly, due to an incorrect call for autoBoundProperties.includes.

slim.js/src/Slim.js

Line 343 in 282ba02

 if (newValue !== oldValue && this.autoBoundAttributes.includes[attr]) { 

Since includes is a function, this.autoBoundAttributes.includes[attr] should be this.autoBoundAttributes.includes(attr)

[Avichay Eyal]

great catch!
Would you pr?

[Yavuz Tor]

Sure. I will get that soon.