If you save data from a form to an hidden input fields with value = true, the input is saved as 'true'. Now the toggle fieldset cant read the setting, because of the marks.
<input type="hidden" name="field" value="true">
<input type="hidden" name="field" value=true>
<input type="hidden" name="field" value=1>
// Output in yaml:
field: 'true' // Toggle shows false
// field: true // Toggle shows true
This happens with all examples.
If you save data from a form to an hidden input fields with value = true, the input is saved as 'true'. Now the toggle fieldset cant read the setting, because of the marks.