Issues

This pull request fixes #1284.

Description

When using AutoExpand, and specifying a system query option that's not lower case (such as $Expand) an exception is thrown. The exception indicates that Expand is being added twice.

"message": "The query specified in the URI is not valid. Query option '$expand/expand' was specified more than once, but it must be specified at most once.",

This change is to resolve issues with the AutoExpand when using capitalized $Expand system query options

For example, given the following entities where Friends prop and Trip class are AutoExpand

public class Person
{
    public int Id { get; set; }

    public string? Name { get; set; }

    public IList<WeekDay>? WorkingDays { get; set; }

    [AutoExpand]
    public virtual ICollection<Person> Friends { get; set; }

    public virtual ICollection<Trip> Trips { get; set; }
}

[AutoExpand]
public class Trip
{
    public int Id { get; set; }

    public string? Name { get; set; }
}

With this change, we should be able to use $Expand(capitalized of $expand) with the AutoExpand navigation properties:

/People?$Expand=Friends
/People?$Expand=Trips
/People?$Expand=Friends,Trips
/People?$EXPAND=Friends

Checklist (Uncheck if it is not completed)

• Test cases added
• Build and test with one-click build and test script passed

Additional work necessary

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