aria-expanded="true" added twice

I have taken up this issue.

In which file did you find this issue?

No such file is seen.Do you have any idea about the file location from which you have quoted the code in the issue?

No such file is seen.Do you have any idea about the file location from which you have quoted the code in the issue?

+1 to @hass. I replicate the issue on my recent D8 clone using #5.
I used recaptcha-8.x-2.x-dev and captcha-8.x-1.x-dev module.
This issue is related to Drupal core file resides at core/includes/form.inc. Here is the initial patch to fix it but I am not sure if form.inc is the right place to change the code.

@sidharthap: Looks good.
I did a manual testing by applying the above patch and works fine.
Attached are the screenshots taken before and after applying the patch.

Hi,

We try to reproduce issue with Drupal 8.0.x and recaptcha-8.x-2.x-dev and captcha-8.x-1.x-dev module.

But we can't reproduce issue.

Thank you @sidharthap and @nidhi.badani for your work on this.
I think that issue should be reproduced in Core. If you cannot find any place where that occurs, you should write a small test that shows the problem.

Someone found how to reproduce and started to work on a fix
#2605420: Missing aria-pressed template_preprocess_details() due to lost copied attributes in Attribute