Dealing with operation name overloading

[ghost]

I have a WSDL service that unfortunately is not 100% well behaved. The configuration wizard shows this warning:

Warning> This web reference does not conform to WS-I Basic Profile v1.1.
Warning> R2304: Operation name overloading in a wsdl:portType is disallowed by the Profile. A wsdl:portType in a DESCRIPTION MUST have operations with distinct values for their name attributes. Note that this requirement applies only to the wsdl:operations within a given wsdl:portType. A wsdl:portType may have wsdl:operations with names that are the same as those found in other wsdl:portTypes.
  -  Operation 'startDocSession' on portType 'buildDocSoap' from namespace 'http://www.edocbuilder.com/'.
  -  Operation 'getOrderFile' on portType 'buildDocSoap' from namespace 'http://www.edocbuilder.com/'.
  -  Operation 'getLibraryTemplates' on portType 'buildDocSoap' from namespace 'http://www.edocbuilder.com/'.
> Click "Next" to continue.

After that, the driver does appear to have created the datasource, but attempting to expand it results in an exception. Either this:

5.31.00 2018-10-24T14:10:30.7116814-04:00 Custom Data Context Driver - 
AmbiguousMatchException: Ambiguous match found.
   at System.RuntimeType.GetMethodImpl(String name, BindingFlags bindingAttr, Binder binder, CallingConventions callConv, Type[] types, ParameterModifier[] modifiers)
   at System.Type.GetMethod(String name)
   at Driver.SchemaBuilder.CreateExplorerOperation(Type serviceType, OperationBinding operation)
   at Driver.SchemaBuilder.BuildEntities(Type serviceType, Binding soapBinding)
   at Driver.SchemaBuilder.Build(ServiceDescription description, String bindingName, Assembly assembly)
   at Driver.SoapContextDriver.GetSchemaAndBuildAssembly(IConnectionInfo connectionInfo, AssemblyName assemblyToBuild, String& nameSpace, String& typeName)
   at LINQPad.SchemaBuilder.GetSchemaAndBuildAssembly(String repositoryData, AssemblyName assemblyToBuild, String& nameSpace, String& typeName, Boolean allowOneToOne, IDictionary`2& sessionData)

if I choose the 1.1 profile, or

NullReferenceException: Object reference not set to an instance of an object.
   at Driver.SchemaBuilder.Build(ServiceDescription description, String bindingName, Assembly assembly)
   at Driver.SoapContextDriver.GetSchemaAndBuildAssembly(IConnectionInfo connectionInfo, AssemblyName assemblyToBuild, String& nameSpace, String& typeName)
   at LINQPad.SchemaBuilder.GetSchemaAndBuildAssembly(String repositoryData, AssemblyName assemblyToBuild, String& nameSpace, String& typeName, Boolean allowOneToOne, IDictionary`2& sessionData)

if I choose the 1.2 profile.

I'm sure that if I fix my web service so that there are no ambiguous methods, this would go away; but short of that, is there anything I can do?