Scrollbars don't work in eeschema nightly build

[Ron Burkey]

Several weeks ago (I'm not sure when, because I update from the nightly build almost every day), scrollbars stopped working in the eeschema nightly build running on Linux Mint. For example, today I have version listed below my sig.

The symptom is that the scrollbars still appear at the right-hand side and bottom, but you can't use them to pan the drawing. You can still use the F4 hotkey to pan.

--Ron

Application: kicad
Version: 6.0.0-rc1-unknown-eabae68~66~ubuntu16.04.1, release build
Libraries:
    wxWidgets 3.0.2
    libcurl/7.47.0 OpenSSL/1.0.2g zlib/1.2.11 libidn/1.32 librtmp/2.3
Platform: Linux 4.4.0-53-generic x86_64, 64 bit, Little endian, wxGTK
Build Info:
    wxWidgets: 3.0.2 (wchar_t,wx containers,compatible with 2.8) GTK+ 2.24
    Boost: 1.58.0
    OpenCASCADE Community Edition: 6.8.0
    Curl: 7.47.0
    Compiler: GCC 5.4.0 with C++ ABI 1009

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=OFF
    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