imageTag - comman separated list doesn't work

[dfberry]

According to docs the imageTag can be a comma separated list but my comma separated list isn't working. I would like an image to have both the SHA tag and the latest.

        name: Pre-build dev container image
        uses: devcontainers/ci@v0.3
        with:
          subFolder: .github/workflows/
          imageTag: ${{ github.sha }}, latest
          imageName: ghcr.io/${{ github.repository }}
          cacheFrom: ghcr.io/${{ github.repository }}
          push: always

GitHub action in this run.

[2024-02-03T18:18:17.390Z] #22 writing image sha256:6bf56d623ad52df209ffa1bb5d22cc530002aca8c263cc8d576611613cd67eac done
  #22 naming to docker.io/library/vsc-workflows-74e113834fa9b832c34006758f5519e854fdeee2f94da6ed197d9d5c073f8643-features done
  #22 DONE 15.8s
  
  
  Error: Dev container build failed: Command failed: docker tag vsc-workflows-74e113834fa9b832c34006758f5519e854fdeee2f94da6ed197d9d5c073f8643-features ghcr.io/dfberry/cloud-native-todo: latest (exit code: undefined)
  An error occurred building the container.
  Error: Command failed: docker tag vsc-workflows-74e113834fa9b832c34006758f5519e854fdeee2f94da6ed197d9d5c073f8643-features ghcr.io/dfberry/cloud-native-todo: latest