assert cannot resolve bindables with special tag '?'

hw3d/IndexBuffer.cpp

@@ -39,6 +39,7 @@ namespace Bind
 	std::shared_ptr<IndexBuffer> IndexBuffer::Resolve( Graphics& gfx,const std::string& tag,
 			const std::vector<unsigned short>& indices )
 	{
+		assert( tag != "?" );
 		return Codex::Resolve<IndexBuffer>( gfx,tag,indices );
 	}
 	std::string IndexBuffer::GenerateUID_( const std::string& tag )

hw3d/VertexBuffer.cpp

@@ -34,6 +34,7 @@ namespace Bind
 	std::shared_ptr<VertexBuffer> VertexBuffer::Resolve( Graphics& gfx,const std::string& tag,
 		const Dvtx::VertexBuffer& vbuf )
 	{
+		assert( tag != "?" );
 		return Codex::Resolve<VertexBuffer>( gfx,tag,vbuf );
 	}
 	std::string VertexBuffer::GenerateUID_( const std::string& tag )