[Entity Framework 7] Simple filter not works

Hi everyone,

I have a little problem with my where clause. I work with entity framework 7 update 1.

Here is my context :

I have 2 entities (Dossier and Assiette). My entity Dossier contains a collection of Assiette and my entity Assiette contains only one Dossier.

For each entity Assiette, I have a year property, named "AnneeImputation".

Here is my code to filter my entities :

IQueryable<DossierModel> query = dbSet;
query = query.Where(dos => dos.NumeroMatricule == matricule && dos.CleMatricule == cleMatricule && dos.Assiettes.Any(x => x.AnneeImputation == anneeImputation));
return query.FirstOrDefault();

I don't know why the query generated by entity framework is not correct :

SELECT TOP(1) <...>
FROM [APPL_GARP].[T_DOS_DOSSIER] AS [dos]
WHERE (([dos].[DOS_NUMMAT] = @__matricule_0) AND ([dos].[DOS_CLEMAT] = @__cleMatricule_1)) AND (
    SELECT CASE
        WHEN EXISTS (
            SELECT 1
            FROM [APPL_GARP].[T_ASS_ASSIETTE] AS [x]
            WHERE ([x].[ASS_ANNEE_IMPUT] = @__anneeImputation_2) AND ([dos].[DOS_ID] = [x].[DOS_ID]))
        THEN CAST(1 AS BIT) ELSE CAST(0 AS BIT)
    END
)

Do you know why my "Any" into filter is wrong ?

Any help will be appreciate.

Greg