Via tool creates creates zero-length tracks on track intersections

[Aleksandr Sh]

1. Place a via on track intersection. It leaves a zero-length track.
2. Drag or shove the via. The zero-length track is stationary and can interfere with other objects on board.

If a via is placed in the middle of a track, the track splits and the zero-length track doesn't get created. It shouldn't be created on track intersections too.

Application: kicad
Version: (6.0.0-rc1-dev-1583-gb0ab53ac2), release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.61.1 OpenSSL/1.1.1 (WinSSL) zlib/1.2.11 brotli/1.0.6 libidn2/2.0.5 libpsl/0.20.2 (+libidn2/2.0.5) nghttp2/1.34.0
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: 1.68.0
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.61.1
    Compiler: GCC 8.2.0 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

[Wayne Stambaugh (stambaughw)]

Should this be fixed for 5.1? It seems to me like it should.

[KiCad Janitor (kicad-janitor)]

Fixed in revision 70ca02537d1f91b162123e00db3500fee72046e6
https://git.launchpad.net/kicad/patch/?id=70ca02537d1f91b162123e00db3500fee72046e6