The new conditional logic is great but it doesn't quite go far enough.
Currently if the rule_field is a drop down the rule_select becomes a dropdown listing the values from the rule_field, which is ok when the rule_operator is set to 'is', 'is not'.
Ideally if the rule_field is a drop down and the rule_operator is set to 'contains', 'starts with' or 'ends with' then the rule_select should be a text input .
