dpkg-architecture: command not found (happens on ssh login on byzantium)

Librem 5 Birch running byzatium, installed using ./scripts/librem5-flash-image --board librem5r2 --dist byzantium

Each time I login using ssh there is an error message like this:

-bash: dpkg-architecture: command not found

Here is what the whole login looks like:

$ ssh purism@$LOCAL_IP
[... password prompt ...]
Linux pureos 5.11.0-1-librem5 #1 SMP PREEMPT Mon Mar 22 14:21:27 PDT 2021 aarch64

The programs included with the PureOS system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

PureOS comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Tue Mar 30 10:59:35 2021 from [...]
-bash: dpkg-architecture: command not found
purism@pureos:~$ 

Then the ssh session seem to work fine anyway as far as I can tell, but I'm not sure if that command being missing could lead to some other problems.

I figured out that the dpkg-architecture command is part of the dpkg-dev package, and after doing sudo apt install dpkg-dev the error message no longer comes.

What happens at an ssh login that makes it try to use the dpkg-architecture command? Should the dpkg-dev package be installed already by default to avoid the problem?