Issue with not operator inside collection filter

[jjavierdguezas]

I have the following scenario:

class User {
 id: string;
 [...]
 teams: Member[];
}

class Member {
 userId: string;
 user: User;
 teamId: string;
 team: Team;
}

class Team {
  id: string;
  title: string;
  [...]
}

and doing:

import buildQuery  from "odata-query";

let query = buildQuery({
  filter: {
    Teams: {
      all: {
        and: [
          {
            "Team/Title": {
              contains: "team1",
            },
          },
          {
            not: {
              "Team/Title": {
                contains: "team2",
              },
            },
          },
        ],
      },
    },
  },
});

console.log(query);

I expect:
?$filter=Teams/all(teams:((contains(teams/Team/Title,'team1')) and (not contains(teams/Team/Title,'team2'))))

but odata-query produce an invalid query:
?$filter=Teams/all(teams:((contains(teams/Team/Title,'team1')) and (contains(teams/not/Team/Title,'team2'))))

as you can see teams/not/Team/Title is wrong

Is this an issue or is there a way to achieve the expected query?

thanks in advance