The operator '!~' is not supported by the 'text' field.

When we want to use in advanced search master field text with operator '!~' we got following error message:

The operator '!~' is not supported by the 'text' field.

And as we can see in AdvancedSearching-FieldsReference-Text such operator should be supported.

The text master-field can only be used with the CONTAINS operator (~ and !~).

So please fix the issue or improve documentation.