Node deleted when pressing delete key

[alexisrolland]

Moving my comment here to a new issue for bug report: #245

The graph has an annoying behavior when editing text in node options. If the user press the delete key on his keyboard, an entire node is deleted rather than just the text in the text area.

Here is an example to reproduce the issue in the Baklava demo as follow:
https://codesandbox.io/s/baklavajs-example-forked-twsd1r?file=/src/MathNode.js

• Added an InputOption in the MathNode
• Click on the title of the MathNode to select the node
• Double click on the text in the text input to select the word
• Press Delete key --> the whole node is deleted, the expectation would be only the selected text is deleted

[newcat]

Fixed in v2 with v2.0.2-beta.4