St. John's International (CYYT) broken (detached) jetways

The issue of broken jetwas was discussed extensively in another thread (Broken jetways at some airports). This was closed with the remark that the issue was fixed in SU12. However, I cannot confirm this fix. I’m still able to reproduce this bug by the steps I’ve already described in the other thread. I’ve ran all updates (SU and WU) and cleared the community folder, the bug persists.