Workflow step does not see latest global output artifact

[dguendisch]

Is this a BUG REPORT or FEATURE REQUEST?:
BUG REPORT
What happened:
I have a DAG making use of global artifacts. However some steps do not see the results that previous dependent steps did to that global artifact.

This is how my workflow looks like:

The Prepare step produces an artifact named kubeconfigs.
The create-shoot-xxx step overwrites/updates that artifact.
The 4 parallel steps at the bottom of the graph all use the artifcat kubeconfigs. However some of them see the artifact state that was produced by Prepare (e.g. step e2e-fast), while others (e.g. step plant-test) see the expected one that was produced by create-shoot-xxx.

I've attached the resulting workflow resource (albeit it's big...):
workflow.yaml.zip
From the status field I can see that:
Prepare step outputs at artifact key ...live-cron-gcp-z92nr-wf-445938729/kubeconfigs.tgz
create-shoot step outputs at artifact key ...live-cron-gcp-z92nr-wf-3855664820/kubeconfigs.tgz

plant-test correctly inputs with artifact key ...live-cron-gcp-z92nr-wf-3855664820/kubeconfigs.tgz
e2e-fast wrongly inputs with artifact key ...live-cron-gcp-z92nr-wf-445938729/kubeconfigs.tgz

Maybe this one here is similar to #1085 (but not the same as I'm running the latest argo version 2.3.0-rc3)

What you expected to happen:
All 4 parallel steps at the bottom must see the artifact as produced by step create-shoot-xxx

Environment:

• Argo version:

2.3.0-rc3

• Kubernetes version :

1.14.0