Undefined array key "class"

[y2keeper]

I am getting the following error after updating:

Undefined array key "class" in wp-smartcrop.php line 453

Seems to occur when the figure image doesn't have a class attribute as a result of last week's changes.

As a side-note: When the figure image does have a class attribute it is having the tag class added without separating space on that same line (453).

The following would fix both those issues:

if(false === empty($img_tag['attributes']['class'])) {
    $img_tag['attributes']['class'] .= ' ' . $tag['attributes']['class'];
}

[aaronsilber]

@y2keeper Thanks for the issue report and suggested solution. We are reviewing this and will seek to address this in an upcoming release.