Tag issue with the `build_latest.sh`

I see the build job [224](https://ci.adoptopenjdk.net/view/Docker%20Images/job/openjdk_build_docker_multiarch/224/consoleText) is still having the tag issue.

```
INFO: Building adoptopenjdk/openjdk8 x86_64-alpine-jdk8u282-b08 from 8/jdk/alpine/Dockerfile.hotspot.releases.full ...
INFO: Checking when the adopt docker image adoptopenjdk/openjdk8:x86_64-ubuntu-jdk8u282-b08adoptopenjdk/openjdk8:x86_64-ubuntu-jdk8u282-b08-slimadoptopenjdk/openjdk8:x86_64-ubuntu-jdk8u-nightlyadoptopenjdk/openjdk8:x86_64-ubuntu-jdk8u-nightly-slimadoptopenjdk/openjdk8:x86_64-alpine-jdk8u282-b08 was built ...
INFO: AdoptOpenJDK docker image for adoptopenjdk/openjdk8:x86_64-ubuntu-jdk8u282-b08adoptopenjdk/openjdk8:x86_64-ubuntu-jdk8u282-b08-slimadoptopenjdk/openjdk8:x86_64-ubuntu-jdk8u-nightlyadoptopenjdk/openjdk8:x86_64-ubuntu-jdk8u-nightly-slimadoptopenjdk/openjdk8:x86_64-alpine-jdk8u282-b08 does not exist. Docker build needed
```

Looks like the multiple tags are getting concatenated some where after the tags are being passed.

I would like to suggest to revert the changes for multi tag.