Loading icon does not hide after deleting the last image in the Editor's ImageBrowser

[IvanDanchev]

Bug report

Regression in R2 2022 SP1.

Reproduction of the problem

Dojo example:https://dojo.telerik.com/eLULiTob

1. Click the image browser tool in the Editor's toolbar.
2. In the ImageBrowser popup, one by one remove all the folders and images, until none is left.

Current behavior

After deleting the last item (image or folder), the loading icon remains.

Expected/desired behavior

No loading icon should be shown in the popup, once all the images are removed.

Environment

• Kendo UI version: 2022.3.1109
• jQuery version: x.y
• Browser: [all]