unable to set properly displayName

I'm using NC 24.0.1 and Circles 24.0.0.

I've created a Collective named "Communication", but the associated Circle is name "Communication (2)". I don't know why "(2)" has appeared.

Here is the details of the Circles:

{
    "id": "PQviA6t3NOtZYlcOkjBw5Rf8rycNJpQ",
    "name": "Communication",
    "displayName": "Communication (2)",
    "sanitizedName": "Communication", [...]
}

I tried to change the displayName using occ:
occ circles:manage:edit PQviA6t3NOtZYlcOkjBw5Rf8rycNJpQ displayName Communication

but it does not work, I've got still "Communication (2)" as a displaName.

But when I do:
occ circles:manage:edit PQviA6t3NOtZYlcOkjBw5Rf8rycNJpQ displayName Communication1

I've got:

{
    "id": "PQviA6t3NOtZYlcOkjBw5Rf8rycNJpQ",
    "name": "Communication1",
    "displayName": "Communication1",
    "sanitizedName": "Communication1",
}

Then exec again:
occ circles:manage:edit PQviA6t3NOtZYlcOkjBw5Rf8rycNJpQ displayName Communication

it reverts back to:

{
    "id": "PQviA6t3NOtZYlcOkjBw5Rf8rycNJpQ",
    "name": "Communication",
    "displayName": "Communication (2)",
    "sanitizedName": "Communication", [...]
}

Start by reproducing the two occ circles:manage:edit commands shown in the issue and inspect how the circle's displayName is handled when changing it to Communication. Done means setting that value no longer restores Communication (2), while the existing change to Communication1 continues to work.