Assertion failure when running `nmcli connection delete id`

Summary

Assertion failure when running nmcli

Version affected

1.40, git main

Steps to reproduce

# nmcli connection delete id

Actual result

Error: (null) argument is missing.

(process:6218): GLib-CRITICAL **: g_string_free: assertion 'string != NULL' failed
Error: not all connections found.

Expected result

No Glib warning