[MDCList] Label collides with text when option value is empty with text

[jordy2254]

Bug report

When the selected value within select that has text but no 'value' the label collides with the text of the option.

Steps to reproduce

1. Go to https://codepen.io/jordy2254/pen/dydWZEJ
2. (See error) Label collides with text
3. Click on the list box, and select the other option
4. Label does not collide
5. Click on the list box and select the original option
6. (See error) Label collides with text again

Actual behavior

When the selected value within select that has text but no 'value' the label collides with the text of the option.

Expected behavior

A blank value that has a text value should cause the label to float and notch

Screenshots

Your Environment:

Software	Version(s)
MDC Web	13.0.0
Browser	Chrome
Operating System	Windows

Additional context

It appear's this issue has been raised before has been raised before under #5714

Possible solution

It appears this code retrieves the value of the selected item, in our case this is empty so doesn't float and notch our list. It seems the potential solution to this is to change this area code to look at the mdc-list-item__text class within the option in order to decide if the label should float and notch.