ImageInsert loaded before Image throws

[pomek]

📝 Provide detailed reproduction steps (if any)

Create an instance of a classic editor with the following plugins:

[ 'ImageInsert', 'Image' ]

✔️ Expected result

No error.

❌ Actual result

imageinsert.js:59 CKEditorError: observable-bind-to-parse-error
Read more: https://ckeditor.com/docs/ckeditor5/latest/support/error-codes.html#error-observable-bind-to-parse-error
    at observablemixin.ts:611:1
    at Array.forEach (<anonymous>)
    at parseBindToArgs (observablemixin.ts:604:1)
    at Object.bindTo [as to] (observablemixin.ts:463:1)
    at Object.bindToMany [as toMany] (observablemixin.ts:539:1)
    at ImageInsertUI._createToolbarComponent (imageinsertui.ts:179:1)
    at Object.componentCreator [as callback] (imageinsertui.ts:99:1)
    at ComponentFactory.create (componentfactory.ts:108:1)
    at toolbarview.ts:349:1
    at Array.map (<anonymous>)

ckeditor5/packages/ckeditor5-image/src/imageinsert/imageinsertui.ts

Line 177 in 08270aa

const observables = integrations.map( ( { observable } ) => observable );

❓ Possible solution

Perhaps ImageInsert should verify if any image plugin is loaded, as for the following combinations:

• [ Image, ImageInsert ]
• [ ImageBlock, ImageInsert ]
• [ ImageInline, ImageInsert ]

The editor renders properly.

ckeditor5/packages/ckeditor5-image/src/imageinsert/imageinsertui.ts

Line 177 in 08270aa

const observables = integrations.map( ( { observable } ) => observable );