Given the problem is related to Liberty, and possible resolution could have been made by Mitaka, could you please try to reproduce the problem with ideally the master branch (or at least Newton) to see whether the problem is still existing ?
Given the problem is related to Liberty, and possible resolution could have been made by Mitaka, could you please try to reproduce the problem with ideally the master branch (or at least Newton) to see whether the problem is still existing ?