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Reverse Engineer of a .dacpac fails with a Cross-Database Reference

See original GitHub issue

I get an error when reverse engineering project with a Database Reference. Dacpac project builds fine and can resolve all objects from referenced database, but reverse engineering fails.

Steps to reproduce

In a dacpac project click Add Database Reference and reference a dacpac file. It creates a DB variable, for example, $(DB).

Create a view:

CREATE VIEW [dbo].[View1]
AS 
Select * From [$(DB)].dbo.TABLE1

Reverse Engineer error:

System.Exception: Table list error: 
Microsoft.SqlServer.Dac.DacServicesException: Cannot save package to file. The model has build blocking errors:
Error SQL71561: Error validating element [dbo].[View1]: SqlView: [dbo].[View1] has an unresolved reference to object [$(DB)].[dbo].[TABLE1].

   at Microsoft.SqlServer.Dac.Model.SqlSchemaModelObjectService.ValidateAndThrowOnErrors(Boolean treatWarningsAsErrors, IEnumerable`1 ignoreValidationErrors)
   at Microsoft.SqlServer.Dac.Model.SqlSchemaModelObjectService.BuildPackage(Func`1 streamGetter, PackageMetadata packageMetadata, PackageOptions packageOptions)
   at Microsoft.SqlServer.Dac.Model.TSqlModel.BuildPackage(String packageFilePath, PackageMetadata packageMetadata, PackageOptions packageOptions)
   at Microsoft.SqlServer.Dac.DacPackageExtensions.BuildPackage(String packageFilePath, TSqlModel model, PackageMetadata packageMetadata)
   at ReverseEngineer20.DacpacConsolidate.DacpacMerger.WriteFinalDacpac(TSqlModel model, String preScript, String postScript) in C:\Code\EFCorePowerTools\src\GUI\ErikEJ.EntityFrameworkCore.SqlServer.Dacpac\DacpacConsolidate\DacpacMerger.cs:line 86
   at ReverseEngineer20.DacpacConsolidate.DacpacMerger.Merge() in C:\Code\EFCorePowerTools\src\GUI\ErikEJ.EntityFrameworkCore.SqlServer.Dacpac\DacpacConsolidate\DacpacMerger.cs:line 78
   at ReverseEngineer20.DacpacConsolidate.DacpacConsolidator.Consolidate(String dacpacPath) in C:\Code\EFCorePowerTools\src\GUI\ErikEJ.EntityFrameworkCore.SqlServer.Dacpac\DacpacConsolidate\DacpacConsolidator.cs:line 26
   at ReverseEngineer20.DacpacTableListBuilder.GetTableDefinitions() in C:\Code\EFCorePowerTools\src\GUI\ErikEJ.EntityFrameworkCore.SqlServer.Dacpac\DacPacEngine\DacpacTableListBuilder.cs:line 32
   at efreveng.Program.BuildDacpacList(String dacpacPath) in C:\Code\EFCorePowerTools\src\GUI\efreveng\Program.cs:line 94
   at efreveng.Program.Main(String[] args) in C:\Code\EFCorePowerTools\src\GUI\efreveng\Program.cs:line 21

   at EFCorePowerTools.Handlers.ReverseEngineer.ResultDeserializer.BuildTableResult(String output) in C:\projects\efcorepowertools\src\GUI\EFCorePowerTools\Handlers\ReverseEngineer\ResultDeserializer.cs:line 47
   at ReverseEngineer20.ReverseEngineer.EfRevEngLauncher.GetTablesInternal(String arguments) in C:\projects\efcorepowertools\src\GUI\EFCorePowerTools\Handlers\ReverseEngineer\EfRevEngLauncher.cs:line 64
   at ReverseEngineer20.ReverseEngineer.EfRevEngLauncher.GetDacpacTables(String dacpacPath) in C:\projects\efcorepowertools\src\GUI\EFCorePowerTools\Handlers\ReverseEngineer\EfRevEngLauncher.cs:line 30
   at EFCorePowerTools.Handlers.ReverseEngineer.TableListBuilder.GetTableDefinitions(Boolean useEFCore5) in C:\projects\efcorepowertools\src\GUI\EFCorePowerTools\Handlers\ReverseEngineer\TableListBuilder.cs:line 33
   at EFCorePowerTools.Handlers.ReverseEngineerHandler.GetDacpacTables(String dacpacPath, Boolean useEFCore5) in C:\projects\efcorepowertools\src\GUI\EFCorePowerTools\Handlers\ReverseEngineerHandler.cs:line 348
   at EFCorePowerTools.Handlers.ReverseEngineerHandler.<ReverseEngineerCodeFirst>d__3.MoveNext() in C:\projects\efcorepowertools\src\GUI\EFCorePowerTools\Handlers\ReverseEngineerHandler.cs:line 98