Sharepoint lookup field and WebId="

Question

I try to add lookup field in content type. Field has this definition:

<Field ID="{c80e8e3c-7124-4772-a39d-5b69f131d542}"
         Name="Site"
         Group="Tieto Intranet Columns"
         Type="Lookup"
         DisplayName="Site"
         StaticName="Site"
         List="Lists/FavoriteSites"
         ShowField="Title"
         PrependId="TRUE"
         WebId="~sitecollection"
   >

FavoriteSites list, which I want reference by this lookup field, exists on the site collection scope. Deployment goes fine, but when I create list based on content type with this lookup it looks like that lookup field is not connected to FavoriteSites list. I add some data into FavoriteSites and than I a try to add something into second list with lookup field on FavoriteSites. Unfortunately drop down select, which should show me data from FavoriteSites list is empty.

When I create new lookup column to FavoriteSites manually everything is OK.

Do anybody have some idea where can be problem in this lookup definition?

UPDATE:

As Rich recommended me, I set log level on Verbose a find this message:

The WebId=~sitecollection and List=Lists/FavoriteSites attributes specified for field {c80e8e3c-7124-4772-a39d-5b69f131d542} in feature {d86c7005-d31d-43ae-b86b-38f28b81072e} could not be found. Set List={39CEC23E-FB28-47B3-BC36-C21780AD1D94}.

I don't understand it because list FavoriteSites exists. FavoriteSites list and also second list with Site field are deployed by one feature on site collection scope.

I can't specify list in lookup by GUID because I don't know the guid in deployment time.