Default width in Table dialog disappears when we activate Table dialog more than once

[Satya Minnekanti]

To reproduce the defect:

1. Open Ajax sample.

2. Click on Table icon in the Tool bar.

3. See that Table properties dialog comes up with default vales for Rows,Columns & Width.

4. Now Click OK button to insert a Table with default values or click Cancel to close the dialog.

5. Click on Table icon gain in the Tool bar.

See that Table Properties dialog comes up,but default value for Width field is removed and same behavior happens every time you open Table Properties dialog.

[Frederico Caldeira Knabben]

DUP of #6137