[Bug] Problem with editor.destroy() in 2.19

[neSpecc]

const editor = new EditorJS()

editor.destroy(); // TypeError: null is not an object (evaluating 'this.flipper.deactivate')

Steps to reproduce:

1. Go to example/example.html
2. Call editor.destroy() from the console
3. You'll see TypeError: null is not an object (evaluating 'this.flipper.deactivate')

Expected behavior:

The editor destroys correctly.

Device, Browser, OS:

Safari

Editor.js version:

2.19

[sis-dk]

On editor destroy, we loop through moduleInstances and call destroy of each module.

editor.js/src/codex.ts

Line 85 in 43032eb

Object.values(editor.moduleInstances)

moduleInstances contain both BlockSettings and Toolbar
https://github.com/codex-team/editor.js/blob/next/src/types-internal/editor-modules.d.ts

So when looping through the moduleInstances, we call BlockSettings destroy. Now as the loops continues, it reaches Toolbar and calls the destroy of it which agains attempts to destroy BlockSettings. This causes the editor to crash as BlockSettings was already destroyed. (Same with Toolbox)

editor.js/src/components/modules/toolbar/index.ts

Line 383 in 43032eb

private destroy(): void {

Is it ok to destroy an Editor level module from within another module? If yes, then should BlockSettings and Toolbox be contained within Toolbar and accessed only via Editor.Toolbar.BlockSettings?

[ilyapoz]

Do you plan to create a release with this bugfix?

[neSpecc]

Do you plan to create a release with this bugfix?

yes

[RajNandigalla]

waiting for the release @neSpecc