SCIM filter on ListProducts not working as expected

Summary:

I'm trying to find specific products by childSKU repositoryId, e.g.

childSKUs[repositoryId eq "291815"]

Running this is returning all products and not applying any filters - it seems to be ignoring it.

Here is an example of a product I'm trying to search for that confirms it exists:

"items": [        {            "childSKUs": [                {                    "repositoryId": "291815"                },                {                    "repositoryId": "291814"                }            ],            "route": "/belle-1-ply-3kg-mink-blanket-combo",            "displayName": "Belle 1-ply 3kg Mink Blanket Combo",            "primaryFullImageURL": "/ccstore/v1/images/?source=/file/v7346146059030038935/products/Belle-Blanket-Combo-Hero-3for2.jpg",            "id": "Belle-Blankets"        }    ]

Here's what the request URL looks like:

https://f1497597c1prd-admin.occa.ocs.oraclecloud.com/ccadmin/v1/products?showInactiveProducts=false&limit=5&fields=id%2CprimaryFullImageURL%2CparentCategory%2Croute%2CdisplayName%2CchildSKUs.repositoryId&q=childSKUs%5BrepositoryId%20eq%20%22291815%22%5D&offset=5