Checkbox "value" cannot be removed

[fredck]

1. Load the following HTML:

<p><input type="checkbox" value="My Value" /></p>

2. With IE, right-click the checkbox and open the properties dialog.
3. Delete the value field and confirm the dialog.
4. Go to source.

The "value" attribute should disappear, but it's still there, with the original value.

It works well when changing the value instead.

[garry.yao]

1. Doesn't work in IE8 strict mode.
2. IE6/7 result in an 'value' with empty value.

[garry.yao]

The common trick we employed to deal with this problem was to recreate the element.

[m.nguyen]

Fixed with [5236].