PCBNew crashes when delete footprint text

Description

PCBNew crashes when delete additional footprint text Tested on Win64 and Mac Catalina. Mac build kicad-5.1-unified-20200417-024320-675ceb521-10_14.dmg gives this message: /vagrant/build/kicad/src/kicad/common/dlist.cpp(175): assert "aElement && aElement->GetList() == this" failed in remove().

Steps to reproduce

• place footprint on PCB
• edit footprint properties
• add Text field by clicking "+" Button in footprint properties
• click OK to close footprint properties window
• edit footprint again,
• click Update footprint from Library, do not enable any Update text options,
• click Apply, Close
• edit fooptrint again
• remove the text field added previously before upate footprint by clicking the Bin icon
• click OK -- PCBNew force closes silently

KiCad Version

Application: KiCad
Version: (5.1.5-133-g9cb60dcdf)-1, release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.66.0 OpenSSL/1.1.1d (Schannel) zlib/1.2.11 brotli/1.0.7 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.1.1) nghttp2/1.39.2
Platform: Windows 8 (build 9200), 64-bit edition, 64 bit, Little endian, wxMSW
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8)
    Boost: 1.71.0
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.66.0
    Compiler: GCC 9.2.0 with C++ ABI 1013

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