Fix saving personal info on the Admin User page - #1469

Process completed with exit code 1.

The call is ambiguous between the following methods or properties: 'NSubstitute.SubstituteExtensions.Returns<T>(T, T?, params T?[])' and 'NSubstitute.SubstituteExtensions.Returns<T>(T, System.Func<NSubstitute.Core.CallInfo, T>, params System.Func<NSubstitute.Core.CallInfo, T>[])'

Dereference of a possibly null reference.

Unexpected input(s) 'include-prerelease', valid inputs are ['dotnet-version', 'dotnet-quality', 'dotnet-channel', 'global-json-file', 'source-url', 'owner', 'config-file', 'cache', 'cache-dependency-path', 'workloads', 'architecture']