Exchange catalog with app custom configurations

Good day, I am planning to exchange catalog from a deprecated helm chart to a new one to be able to make further app updates.
I saw next hint how to do it here Issues · rancher/rancher · GitHub

  1. App > Options of the App you want to migrate > View in API > Upgrade
  2. Put the replacement externalId > Show Request > Send Request
    After updating new catalog is used but my all custom configs disappeared, only the default files existing
    Is there an existing way how to change app catalog (which was moved to another place) without losing custom configurations like during simple app version update on Rancher?