Failure referencing a previous staged image in FROM clause

[cvgaviao]

Description

I'm trying to use this plugin to run a multi-stage build using a Dockerfile

Initiating the build I receive this error:

[ERROR] DOCKER> Unable to pull 'graalvm:latest' : {"message":"pull access denied for graalvm, repository does not exist or may require 'docker login': denied: requested access to the resource is denied"} (Not Found: 404) [{"message":"pull access denied for graalvm, repository does not exist or may require 'docker login': denied: requested access to the resource is denied"} (Not Found: 404)]

Info

• d-m-p version : 0.31.0
• Maven version (mvn -v) : 3.6.1

• Docker version : 19.03.2
• If it's a bug, how to reproduce :

In my Dockerfile I have: 
FROM oracle/graalvm-ce:19.2.0 AS graalvm
...
FROM graalvm

In my POM I have:

                        <plugin>
                            <groupId>io.fabric8</groupId>
                            <artifactId>docker-maven-plugin</artifactId>
                            <version>${docker-maven-plugin.version}</version>
                            <configuration>
                                <verbose>true</verbose>
                                <images>
                                    <image>
                                        <alias>service</alias>
                                        <name>${image.namespace}/${image.name}:${image.tag}</name>
                                        <build>
                                            <noCache>false</noCache>
                                            <optimise>true</optimise>
                                            <tags>
                                                <tag>${project.version}</tag>
                                            </tags>
                                            <contextDir>${project.build.directory}/context</contextDir>
                                            <dockerFile>${project.basedir}/src/main/docker/Dockerfile</dockerFile>
                                        </build>
                                    </image>
                                </images>
                            </configuration>
                        </plugin>