Connect can't find op://vault/item/file.json

When using a connect server and trying to reference a file from the OP cli, it errors:

Specifically
op inject -i service-account.json.tmpl -o service-account.json

with {{ op://vault/demo-api/service-account.json }} in the template.

service-account.json is saved as a file attachment in the demo-api item in the vault.

[ERROR] 2022/07/07 15:55:55 could not read secret op://vault/demo-api/service-account.json: could not find field or file service-account.json on item demo-api in vault vault

This works appropriately when using an account, but not when using connect.

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