Clearing fields with `fs-list-split` doesn't clear the input

[alexiglesias93]

Related Attributes
fs-list

Describe the bug
If an input field has fs-list-split, and the field is cleared by removing the tag, the input field is not cleaned.

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
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Screenshots
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Affected devices
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• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

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Additional context
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