actions.delete isn't deleting all nodes within a canvas

[jmschneider]

Describe the bug
When I call actions.delete on a canvas, it is not deleting all of the nodes under that canvas. It appears to be deleting some but not all. The nodes disappear from the interface but still exists in the editor state.

To Reproduce
Steps to reproduce the behavior:

1. Create a canvas with multiple nodes
2. Call actions.delete(canvas_id)
3. Call query.serialize()
4. You should still see the deleted nodes in the serialized state

Expected behavior
Based on these lines, I think it is supposed to be deleting all the nodes within the canvas.

Your environment

Software	Version(s)
craft.js	0.1.0-beta.5
React	16.13.1
TypeScript	3.8.3
Browser	Firefox
npm/Yarn	yarn
Operating System	OS X