Implicit junction without a dot, repeatable with extra wire and bus entry

Note that this happens *after* commit b81b7decf which yesterday fixed a bug with junctions without dots.

1. Draw two wires crossing - two different nets.
2. Add another wire end and a bus entry end into the crossing.
3. Delete the junction dot.
4. Move away the extra third wire and the bus entry.
5. There are four wire segments left, one implicit junction, no junction dot and one net.

Video attached.

I'm quite sure this happened even without the third extra wire, but couldn't repeat it that way.

Application: Eeschema
Version: (5.1.4-107-g1161562bc)-1, 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/0.21.0 (+libidn2/2.1.1) nghttp2/1.34.0
Platform: Windows 7 (build 7601, Service Pack 1), 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:
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