v4.0.0-alpha.6 - Activating tooltips breaks modals (stuck "transitioning")

Created by: METACEO

Operating systems and browsers:

• Windows; Firefox 50.1.0, Internet Explorer 11, Tor Browser 6.0.8 (Firefox 45.6.0)
• Android 5.0.1 (Galaxy S4); Firefox 40.0.3, Chrome 45.0.2454.84, Stock Browser 2.1.34.19

Launch the demo modal with tooltips in the component's documentation, activate a tooltip, then try and exit the modal - nothing expected appears to happen. I have reproduced this outside the documentation while I have not yet tried to reproduce this outside the documentation, across all of my devices, this seems to be a show-stopping bug - freezing the user's interface and preventing any other interaction.

I'm logging two different errors in my console:

• closing the modal logs Error: Modal is transitioning
• activating a tooltip logs Error: Tooltip is transitioning.