Slate: Deleting only child void node throws an exception

[ericedem]

Do you want to request a _feature_ or report a _bug_?

Bug

What's the current behavior?

Trying to delete an inline void node that is the only leaf throws an exception Uncaught TypeError: Cannot read property 'text' of null

This JSFiddle sets things up.

1. Select the void node, or select after it.
2. Hit backspace.

Browser: Chrome: Latest

What's the expected behavior?

Should be able to backspace to delete, or select and delete the void node.

[ericedem]

My current hypothesis is that the code is failing at this point: https://github.com/ianstormtaylor/slate/blob/master/packages/slate/src/changes/at-range.js#L379-L388

In the case that the current text is preceeded by a void node, the void node is just supposed to be deleted. However, the void node is not being correctly detected, and prevVoid is undefined.

[ericedem]

Ok it looks like the problem above is that the "voidness" needs to be specified in the schema, rather than the data itself. I wonder if there should be a warning or error if someone tries to set isVoid. Here is a modified fiddle that works: https://jsfiddle.net/fj9dvhom/1843/

[JinJieTan]

I still haven't solved this problem. Your code hasn't solved my problem. When I deleted the only image content of the Editor, I was prompted that I Cannot read property 'text' of null ，please ,help me !

[kocka5]

I have same error. Full stack is here:
slate_error.zip

I use slate version 0.47.8

[mhaagens]

Same issue here.