Possible regression in filtering

[papafe]

The query in the following snippet started throwing an exception between core 13.15.0 (doesn't throw) and 13.17.0

var realm = await Realm.GetInstanceAsync();

var invent = realm.All<Inventory>()
    .Filter("Plants.@keys == 'Petunia'"); // <-------- This throws

//.....

public partial class Inventory : IRealmObject
{
    [PrimaryKey]
    [MapTo("_id")]
    public string Id { get; set; } = null!;

    public IDictionary<string, Plant?> Plants { get; } = null!;

    public IDictionary<string, bool> BooleansDictionary { get; } = null!;

    public IDictionary<string, int?> NullableIntDictionary { get; } = null!;

    public IDictionary<string, string> RequiredStringsDictionary { get; } = null!;
}

public partial class Plant : IRealmObject
{
    [PrimaryKey]
    [MapTo("_id")]
    public ObjectId Id { get; set; } = ObjectId.GenerateNewId();

    public string? Name { get; set; }

    public string? Sunlight { get; set; }

    public string? Color { get; set; }

    public string? Type { get; set; }

    public string? Partition { get; set; }
}