Checkmk Werk 11968: REST API: restricting host tag group id to the same pattern as in WATO

ID: 11968 Title: REST API: restricting host tag group id to the same pattern as in WATO Component: Core & setup Level: 1 Class: Bug fix Version: 2.1.0i1 The REST API previously allowed more flexibility for the host tag group id than allowed in WATO. This werk fixes this behaviour to reflect the same restriction.