Commented Unassigned: Exception could be improved when EntitySet.Table is changed from CSpace [1303]

When a model based convention on EntitySet modifies EntitySet.Table from CSpace a somewhat unclear exception is thrown. What this message actually means is that the .Table property must be changed from SSpace rather than CSpace, but this is not clear from the message

Exception
Schema specified is not valid. Errors:
(0,0) : error 0005: The 'Table' attribute is not allowed.

Convention:
class ModelBasedConvention : IModelConvention<EntitySet>
{
public void Apply(EntitySet entity, EdmModel model)
{
entity.Table = "_" + entity.Table;
}
}
Comments: Stack Trace: PM> add-migration a -force System.Data.Entity.Core.MetadataException: Schema specified is not valid. Errors: (0,0) : error 0005: The 'Table' attribute is not allowed. at System.Data.Entity.Core.Metadata.Edm.EdmItemCollection.LoadItems(IEnumerable`1 xmlReaders, IEnumerable`1 sourceFilePaths, SchemaDataModelOption dataModelOption, DbProviderManifest providerManifest, ItemCollection itemCollection, Boolean throwOnError) at System.Data.Entity.Core.Metadata.Edm.EdmItemCollection.Init(IEnumerable`1 xmlReaders, IEnumerable`1 filePaths, Boolean throwOnError) at System.Data.Entity.Core.Metadata.Edm.EdmItemCollection..ctor(IEnumerable`1 xmlReaders) at System.Data.Entity.Utilities.XDocumentExtensions.GetStorageMappingItemCollection(XDocument model, DbProviderInfo& providerInfo) at System.Data.Entity.Migrations.Infrastructure.EdmModelDiffer.Diff(XDocument sourceModel, XDocument targetModel, Lazy`1 modificationCommandTreeGenerator, MigrationSqlGenerator migrationSqlGenerator) at System.Data.Entity.Migrations.DbMigrator.Scaffold(String migrationName, String namespace, Boolean ignoreChanges) at System.Data.Entity.Migrations.Design.MigrationScaffolder.Scaffold(String migrationName, Boolean ignoreChanges) at System.Data.Entity.Migrations.Design.ToolingFacade.ScaffoldRunner.Scaffold(MigrationScaffolder scaffolder) at System.Data.Entity.Migrations.Design.ToolingFacade.ScaffoldRunner.Run() at System.AppDomain.DoCallBack(CrossAppDomainDelegate callBackDelegate) at System.AppDomain.DoCallBack(CrossAppDomainDelegate callBackDelegate) at System.Data.Entity.Migrations.Design.ToolingFacade.Run(BaseRunner runner) at System.Data.Entity.Migrations.Design.ToolingFacade.Scaffold(String migrationName, String language, String rootNamespace, Boolean ignoreChanges) at System.Data.Entity.Migrations.AddMigrationCommand.Execute(String name, Boolean force, Boolean ignoreChanges) at System.Data.Entity.Migrations.AddMigrationCommand.<>c__DisplayClass2.<.ctor>b__0() at System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action command) Schema specified is not valid. Errors: (0,0) : error 0005: The 'Table' attribute is not allowed.