QuickInfoSessionOption in TriggerQuickInfoAsync does not seem to work #13

I would like to keep a Quick Info open when the mouse moves away. Thus, when I hover my mouse over a textView I issue a Trigger:

this._quickInfoBroker.TriggerQuickInfoAsync(this._textView, triggerPoint, QuickInfoSessionOptions.None);

Yet the option QuickInfoSessionOptions does not have any observable difference between QuickInfoSessionOptions.None and QuickInfoSessionOptions.TrackMouse.

Working example can be found here.

Question: What should I do to keep a Quick Info open when the mouse moves away?