UBI Stream cancellation test failing

[MCarlomagno]

Steps to reproduce

Following the readme.md instrctions:

1. Clone Repository

   $ git clone https://github.com/DemocracyEarth/ubi.git
   $ cd ubi

2. Install Dependencies

   $ npm install

3. Run Tests

   $ npx hardhat test

Issue

Seems that there is a failing test at /test/sUBI.ts file:

  91 passing (1m)
  1 failing

  1) sUBI.sol
       UBI Stream cancellation
         happy path - when reportRemoval is executed, all existing and future streams should cancel and canceller balance should increase :

      There should be no active streams after reportRemoval
      + expected - actual

      -3
      +0