name attribute on <select> is lost

[Alfonso Martínez de Lizarrondo]

1. Load replace by class sample in IE (8) or Safari (in other browsers is not possible to edit an existing <select>)
2. Insert a <select> and set name=s1, lines=4 (so we can be sure that we are editing the same element) close the dialog
3. Switch to source, it's OK
4. Switch to design and edit the select
5. The name field is empty. If you set a new name, then when switching to source will show it duplicated:

<select name="s1" name="s2" size="4">

On the other side, if you don't write anything, the name will be lost

<select size="4">

[Alfonso Martínez de Lizarrondo]

The same problem exists for <textarea> in Firefox, IE and Safari. Opera works OK

[Artur Formella]

The same problem exists with checkbox and radio.

Patch is based on #3632.

[Alfonso Martínez de Lizarrondo]

Both bugs seems correctly fixed with the patch.

[Artur Formella]

Fixed with [3597]