Dialogs stay "aria-busy" after canceling an alertdialog

[jaller94]

Reproduce

Example 1

1. Create a new contact or edit an old one
2. Click "Cancel" in the edit dialog.
3. Click "Stay on edit mode"

Example 2

1. Open an existing contact
2. Click "Delete"
3. Cancel the deletion.

Expected behaviour

The dialog moves up again and isn't faded to grey. The <section role="dialog" class="card"> loses its attribute aria-busy="true".

Actual behaviour

The edit dialog stays in it's transition and faded. This is because the attribute aria-busy="true" isn't removed or set to false.

Cozy / Browser versions

Contacts App: 2.1.14

Browser: Chrome 53 / Firefox 48.0 on Ubuntu 16.04

[clochix]

Thanks for this very detailed report!