Interactive router pad "exit" sometimes behaves strangely in 5.1.5

In some cases exiting a pad behaves quite strangely. I made a screencast showcasing the problem. Notice that the grid setting is very small (0.05mm) so the router really has no reason to behave this strangely.

The example project i used (from one of my tutorials, in finished state so you will need to delete the one trace in question first.) first_project_pcb_done.zip

Screencast: https://youtu.be/ZYgQ12PmvqQ

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Somebody on reddit complained about the same thing (reminded me that i wanted to make a bug report about this): https://old.reddit.com/r/KiCad/comments/en3xkx/is_there_a_way_i_can_avoid_traces_not_being/

Application: Pcbnew
Version: 5.1.5-1.fc30, release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.65.3 OpenSSL/1.1.1d-fips zlib/1.2.11 brotli/1.0.7 libidn2/2.3.0 libpsl/0.20.2 (+libidn2/2.0.5) libssh/0.9.2/openssl/zlib nghttp2/1.39.2
Platform: Linux 5.3.16-200.fc30.x86_64 x86_64, 64 bit, Little endian, wxGTK
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.24
    Boost: 1.69.0
    OpenCASCADE Technology: 7.4.0
    Curl: 7.65.3
    Compiler: GCC 9.2.1 with C++ ABI 1013

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=OFF
    KICAD_USE_OCC=ON
    KICAD_SPICE=ON