Fix preference remaining in an invalid state

[oxixes]

Proposed changes

This fixes an error where the preferences would remain in an invalid state if a tab inheritance is deselected the first time without then changing the default value.

Types of changes

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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

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• I have read the CONTRIBUTING doc
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• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)
• Any dependent changes have been merged and published in downstream modules