Mehdi Taghi

**Test environment:** ``` Erlang/OTP 25 [erts-13.1.2] Elixir 1.14.2 ecto 3.10.3 ecto_sql 3.10.1 ecto_sqlite3 0.10.3 ``` **Description:** Suppose it, as a completely straightforward use case, as the documentation of `no_assoc_constraint/3` expressed...