AlwaysOn Availability Groups cannot be selected while restoring a SQL database to Microsoft SQL Server 2017 after installation of CU15

Challenge You try to restore a SQL database to Microsoft SQL Server 2017 with CU15 that supports AlwaysOn Availability Groups, but you are not able to select an availability group at the "Specify AlwaysON Restore Options" step. Cause ServerNetworkProtocolProperty is missing in CU15 for SQL Server...