creating container app with template throws error that it shouldn't

[romtecmax]

For lack of a better place to post this:

I get the following error when trying to deploy a container app using a template. As you can read from the error message, the error is obviously not as described, since my revision name follows the conventions. Also the container app name is test-api and therefore they are less than 54 characters together. Seems like a bug, as the error message seems to be wrong.

{
  "code": "InvalidTemplateDeployment",
  "details": [
    {
      "code": "ValidationForResourceFailed",
      "message": "Validation failed for a resource. Check 'Error.Details[0]' for more information.",
      "details": [
        {
          "code": "ContainerAppInvalidRevisionName",
          "message": "Revision name has an invalid value 'testrevision'. A revision name must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character. The length of the revision name must not be more than a combined 54 characters with the container app name."
        }
      ]
    }
  ],
  "message": "The template deployment 'Microsoft.Template-20260107190801' is not valid according to the validation procedure. The tracking id is 'b798306a-b958-471a-84ad-1ccb076617bf'. See inner errors for details."
}