Zones connects to the wrong net name

In pcbnew; the zone name for a selected zone is changed during refill and is no longer connected to the selected net, i.e., connecting to the wrong net.

Description

The zone is expected to connect to the selected net name. What happens is that this net name is changed to the wrong one. See video.

Steps to reproduce

1. Have two or more overlapping zones
2. Attach zone to name and fill
3. After fill, the zone is no longer connected to the original intended net See video attachment

KiCad Version

Version: 5.99.0-unknown-0d8f0d361e~130~ubuntu18.04.1, release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.58.0 OpenSSL/1.1.1 zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
Platform: Linux 4.15.0-147-generic x86_64, 64 bit, Little endian, wxGTK, ubuntu, x11
Build Info:
    Date: Jun 30 2021 18:21:47
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.22
    Boost: 1.65.1
    OCC: 7.5.1
    Curl: 7.58.0
    ngspice: 33
    Compiler: GCC 7.5.0 with C++ ABI 1011
Build settings:
    KICAD_USE_OCC=ON
    KICAD_SPICE=ON

kicad.movie1