Bravetools fails to deploy an image on a remote if using the source image on the remote

[idroz]

Consider the following set up:

1. A remote amd64 is added to Bravetools
2. The remote amd64 is used to build an image (see Bravefile below)
3. The resulting image is pushed to the remote
4. brave deploy is run with amd64 remote as the target for a deployed unit.

Since the image already exists on the remote, LXD raises an error:

failed to import image: Image with same fingerprint already exists

A possible work around is to check if the image exists on the remote and not re-import it during brave deploy.

Bravefile:

image: amd64:python/3.10
base:
  image: alpine/edge
  location: public
packages:
  manager: apk
  system:
  - bash
  - python3
run:
- command: sh
  args:
  - -c
  - echo Hello World
service:
  name: python
  docker: "no"
  resources:
    ram: 4GB
    cpu: 2
    gpu: "no"

[idroz]

Closed over #209