Diagrams event aren't fired on IE11 when Pointer events are disabled (v1.8,2)

[walter]

1.8.5 has been released as “latest”.

GoJS version 1.8.5

IE: Fixed a regression from 1.8.3 with PointerEvents: Mouse-based events now correctly report their button (left, right middle) and modifier keys (Ctrl, Alt, etc). Additionally, modifier keys now work with touches, so users can do actions such as CTRL+touch to select multiple nodes. Fixed a bug with shadows in IE (but not Edge) sometimes causing draw-related errors with the Canvas Context. The user of PointerEvents is additionally limited by window.navigator.msPointerEnabled not being false. Th…