QRCode wizard does not export the correct footprint

[Antoine Pintout]

QRCode wizard does not export the correct footprint. The preview is correct but once I click "Export footprint to editor", only a small square is exported (see attachment).

Steps to reproduce :
- Open footprint editor
- Click "New footprint using footprint wizard"
- Select "11. 2D Barcode QRCode"
- A valid QRCode containing "Example" is showing.
- Click "Export footprint to editor"
- The footprint wizard is closed and only a small square and the text labels are in the editor instead of a valid QRCode.

Other wizards seem to work.

My version infos :

Application: kicad
Version: 6.0.0-unknown-589a37b~86~ubuntu18.04.1, release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.58.0 OpenSSL/1.1.1 zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
Platform: Linux 4.15.0-49-generic x86_64, 64 bit, Little endian, wxGTK
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.22
    Boost: 1.65.1
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.58.0
    Compiler: GCC 7.4.0 with C++ ABI 1011

Build settings:
    USE_WX_GRAPHICS_CONTEXT=OFF
    USE_WX_OVERLAY=ON
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_PYTHON3=ON
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_WXPYTHON_PHOENIX=ON
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON