Credetials created through api are not visible by passman front-end / extension

Bug report

Steps to reproduce

1. add credential through api
2. login into vault
3. see "An error occurred during decryption" error

Expected behaviour

Once a credentials are created through api those credentials should will be visible in passman app / extension

Actual behaviour

Once created through api those credentials are not visible in browser extension neither in passman app (here once entered into some vault with credentials created through api we will experiencing a message during credentials enryption such as "An error occurred during decryption") from here https://github.com/nextcloud/passman/blob/master/js/app/controllers/credential.js#L78

Configuration

Operating system: any

Browser: any browser

Extensions that might cause interference:

Passman version: latest

Operating system: any

Web server:

Database:

PHP version: 7.x

cloud server: Nextcloud

cloud version: 15.x

An example of json for creating new vault credential

{
        'vault_id': 1,
        'label': 'label',
        'username': 'encrypted',
        'password': 'encrypted',,
        'hidden': false
}

NB:
If i call https://github.com/nextcloud/passman/blob/master/docs/api.md#get-vault-get i see correctly the previous created credentials through api

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Start with js/app/controllers/credential.js#L78 and compare how credentials returned by the API are handled in the front end and extension. Review the docs/api.md get-vault response and the example API payload, then reproduce the decryption error. Done means credentials created through the API are visible and usable in both the Passman app and browser extension.