Very weird issue with Boolean attribute "itemscope"
[issue link]Version
Reproduction link
https://jsfiddle.net/u01vm19q/2/
Steps to reproduce
<div :itemscope="''"> Lorem</div> or <div itemscope> Lorem</div> or <div :itemscope="true"> Lorem</div>
What is expected ?
<div itemscope> Lorem</div>
What is actually happening?
<div itemscope="itemscope"> Lorem</div>
Additional comments?
And with other custom tags behavior is another. for example
<div :trololo="''"> Lorem</div> will go to <div trololo> Lorem</div>
“itemscope” is an important boolean microdata tag, how to fix that?