ExtraProperties ignored in AutoMapper's ProjectTo<>

[antonGritsenko]

Is there an existing issue for this?

• I have searched the existing issues

Description

ExtraProperties ignored if ProjectTo<> method of AutoMapper was used.

Reproduction Steps

1. Add any extra property to IdentityUser
2. Rune pseudo code:

public UsersController(IReadOnlyRepository<IdentityUser> repo, IMapper mapper)
{
    
}

public async Task<IQueryable<IdentityUserDto>> Get()
{
    var queryCustom = (await _dataSet.GetDbSetAsync()).Where(t => t.Surname == "Dow");
    var resultNotMapped = queryCustom.ToList(); //here we have ExtraProperty set
    
    var mappedQuery = _mapper.ProjectTo<IdentityUserDto>(queryCustom); 
    var resultMapped = mapperQuery.ToList(); // ExtraProperty always is 0 list

    return mappedQuery;
}

Expected behavior

ProjectTo correctly handling ExtraProperties

Actual behavior

ProjectTo not handling ExtraProperties

Regression?

No response

Known Workarounds

No response

Version

8.1.1

User Interface

Angular

Database Provider

EF Core (Default)

Tiered or separate authentication server

None (Default)

Operation System

Windows (Default)

Other information

No response

[maliming]

hi

Can you upload a simple project to GitHub?
Thanks.