Comment 4 for bug 1811471

> Also is this then just not a simple cherrypick of:
>
> https://github.com/systemd/systemd/commit/93158c77bc69fde7cf5cff733617631c1e566fe8

that's one way to work around it, although glibc is not necessarily the only thing that might do pipelined TCP dns lookups to the local stub resolver (though I have no examples of anything else that does). It certainly should fix/workaround this for Ubuntu installs using the default systemd-resolved setup and only having issues with getaddrinfo() failures.

I still plan to fix systemd's stub resolver to correctly respond to pipelined TCP dns queries.