Delete vertex deletes whole polygon

[csimpi]

mapbox-gl-js version: newest
mapbox-gl-draw version: newest

Steps to Trigger Behavior

It's randomly happening:

1. Select a polygon
2. Select a vertex (point), -> the yellow point goes bigger
3. Delete the vertex

https://gifyu.com/image/mQuD

Expected Behavior

When I select a vertex and delete it (Del button or Trash icon) the selected vertex should be deleted.

Actual Behavior

Sometimes the whole polygon disappears sometimes only the selected vertex. I've tried many many times.

[kkaefer]

This could have been fixed by #943. However, without a more explicit example, e.g. a specific GeoJSON and specific points to click on and trash, I can't verify that it did. The above mentioned fix will be available in the next release.