Deploy Docker Wizard: No docker connection is preselected in the wizard even it is selected in docker explorer

When opening Deploy Image to OpenShift wizard from context menu of a project and I have a docker connection selected in Docker explorer, the combo box with docker connection in the wizard is empty. The Docker Connection: combo should have filled currently selected docker connection in docker explorer.

steps to reproduce:

1. ASSERT: have a docker connection and an openshift connection with at least 1 project
2. EXEC: in Docker explorer: select a docker connection
3. EXEC: in OpenShift explorer: pick "Deploy Docker Image..." in the context menu of a project

Result:
Deploy Docker Image wizard pops up, Docker connection is not preselected, while it could (and we do this in many wizards), since we selected a docker connection in Docker explorer