[Pkg-utopia-maintainers] Bug#982841: ifupdown scripts interfere with bond setup

[Marius Vollmer]

Package: network-manager
Version: 1.28.0-2+b1

NetworkManager runs the ifupdown scripts on certain events, but
especially /etc/network/if-post-down.d/ifenslave interferes with bond
setup somehow.

See

    https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/660

for the investigation.  NM upstream says:

    That's bad. The script shouldn't to that. Please report it to debian
    or ifenslave package.

So here you go. :)