Only 1 process shown for 2 versions of deployment even with different process version

Description of problem:

Please note that this is not the same issue as described in https://bugzilla.redhat.com/show_bug.cgi?id=1008918 .

I have two maven projects, one with version 1.0.5 and 1.0.6. Each maven process includes one bpmn 2 process definition, the process version differs for each maven process (1.2 vs 1.3).

I build both of these maven projects (mvn clean install package).

Then I deploy them via

Deployments -> New Deployment unit

However, only ONE process definition is visible.

Please see both attached screenshot.

deployment.png - what deployment units are in the business-central, with what process definitions inside
processdefinition.png - what process definition are actually available in the business-central.

Version-Release number of selected component (if applicable):

BPM 6.0.0 GA
How reproducible:
always

Steps to Reproduce:
1. Create two maven projects with different versions
2. Include one process definition in each maven project, make sure that the bpmn process version differs
3. deploy both maven projects in business-central
4. Check process definition tab in business-central. Only one process definition is visible.

Actual results:

Only process versions are visible under process definition tab.

Expected results:
Both process versions are visible under process definition tab.

Additional info:

Attach 2 screenshots, simple maven projects which includes one bpmn2 process.