QNX on Remote Linux doesn't establish network connection "Connecti via"

Steps to reproduce

• Add a remote Linux device as described here.

Expected result

• Wizard allows to specify "Access via"
• Adding QNX target works

Actual result

• "Access via" can't be specified, so the ssh connection to the QNX subsystem is attempted to be made locally, instead of from the VM.
• Specifying the VM as "Access via" in the combobox in device settings works graphically.
• The specified "Access via" is ignored, connection is made locally and reported as failed.

=> Remote debugging on QNX in CI is not possible.