QtQuick 2 projects : macdeployqt tries to deploy qml imports that should be ignored

When running macdeployqt on MyProject.app, with option -qmldir="../MyProject/qml", there are imports that should be ignored :

1. Local imports :
If I organize my qml files in subdirectories (see below), I import these subdirectories with :

import "SubDir1" (in main.qml)
import "../SubDir1" (from qml files in SubDir2)

These imports should be ignored, because we don't want to copy the qml files from subdirectories in MyProject.app/Contents/Resources/qml/
With Qt 5.2.1, they are all copied (copy: "/root/MyProject/qml/SubDir1" "MyProject.app/Contents/Resources/qml/SubDir1")
With Qt 5.3.0 Beta the copy fails because it uses a weird relative path (copy: "../MyProject/qml/main.qml/SubDir1" "MyProject.app/Contents/Resources/qml/SubDir1")
It is a problem to copy the subdirectories here, because they already are in the resource system (thanks to qml.qrc), and because the user could access them.

2. Modules registered from C++ with qmlRegister() :
If in main.cpp I do something like :

qmlRegisterUncreatableType<MyType>("CppClasses", 1, 0, "MyType", "");

And I import that from main.qml with :

import CppClasses 1.0

This import should be ignored, because no .qml file or anything is associated with it.
With both Qt 5.2.1 and 5.3.0 Beta, qmlimportscanner returns this JSon object :

{
"name": "CppClasses",
"type": "module",
"version": "1.0"
}

As there is no "path" field, macdeployqt does this :

copy: "" "MyProject.app/Contents/Resources/qml/CppClasses"

Which results in a folder containing an empty "MyProject.app" file, and error messages like :

ERROR: file copy failed from "/main.o"
ERROR: to "MyProject.app/Contents/Resources/qml/CppClasses/main.o"

Project organization :

root
    |- MyProject
        |- src (.cpp/.h files)
            |- main.cpp
        |- qml (.qml files)
            |- main.qml
            |- qml.qrc (lists all .qml files)
            |- SubDir1
            |- SubDir2
    |- build-MyProject
        |- MyProject.app