Bug 1513769

# Create a docker hub account. (https://cloud.docker.com/) 
# Install docker on a machine
# Run the following commands 
<pre>
docker login -u <username> docker.io
docker pull alpine
docker tag docker.io/alpine:latest docker.io/<username>/alpine:latest
docker tag docker.io/alpine:latest docker.io/<username>/alpine:greatest
docker push docker.io/<username>/alpine
</pre>
# On your katello ui create a docker repo with the following data -> name: repo1,  feed: https://registry-1.docker.io , upstream: <username>/alpine
# Sync repo1. Make sure you see a repo with 2 tags 
# Now go to https://cloud.docker.com/swarm/<username>/repository/docker/<username>/alpine/tags and delete the "latest" tag
# On your katello ui create a docker repo with the following data -> name: repo2,  feed: https://registry-1.docker.io , upstream: <username>/alpine
# Sync repo2. Make sure you see a repo with 1 tag
# Finally create a content view 
# Add repo2 via Docker Content to the cv. Make sure its the repo that has 1 tag
# Create a Docker Content View Filter With the following data -> Type: Include
# Under Tags add a rule to only include the  "greatest"  tag
# Finally publish the content view and check out the published version

Expected:
A successful publish with 2 manifests and 1 Tag


Actual:
A successful publish but the manifest shows 2 Tags instead 


A further look at the publish task and expanding "13: Actions::Pulp::Repository::CopyDockerTag (success) [ 1.82s / 0.39s ]"

will show  the following clause.
<pre>
---
source_pulp_id: f93edc01-4915-45c8-a484-e926c561949f
target_pulp_id: 1-jonathan-v1_0-f93edc01-4915-45c8-a484-e926c561949f
clauses:
  "$or":
  - name:
      "$in":
      - latest
      - greatest
      - greatest
      - greatest
      - greatest
remote_user: admin
remote_cp_user: admin
locale: en
</pre>

So even though the content filter should have only published "greatest" since the source repo had only the 'greatest' tag, we are ending up copying both "greatest" and "latest"