Stephan,
We fixed this issue, but due to some internal miscommunication, the patch wasn’t actually sent out to your team. Please accept my sincere apologies for the delay – I had assumed your team had already been using the fix for some time, I was remiss in not following up.
A release of 2017 CI 9 is actually going out the door right now (will be available in a few hours) and includes the fix. I realize your team is still on 2017 Stable 1.0 though (the next Stable release is still some time away) and so I’ll have someone work on this ASAP and get you a fix in at most another day.