When Marking a Booking Field as Required, the Form Becomes Unusable

@hewi1345, thank you for you feedback.
I wasn't able to get the same error as you did, but since the validation error was in a field that only manager can see, the form was blocked without any user feedback.
The new release adds user feedback in case the field is required an no slot is selected.

Thanks, the error seems related to Use conditional logic to show/hide webform_booking fields bring to PluginNotFoundException 🐛 Use conditional logic to show/hide webform_booking fields bring to PluginNotFoundException Fixed

The previous fix only covered validation if the field was always required.
The latest release 1.0.8 now allows to use required as conditional