Image toolbar is wrongly positioned when adding multiple images at the same time

[orsolyaDekany]

Do you want to request a feature or report a bug?
Bug

What is the current behavior?
When dropping 2 images in the editor content and selecting the second image to make the toolbar visible, the toolbar is wrongly positioned, because it is visible on the top of the first image instead of the second one.

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem.
https://issues.liferay.com/browse/LPS-166604

1. Configure the editor to Alloyeditor on 7.3.x and create a web content
2. Drag and drop 2 large images at the same time in the content, so they are positioned vertically
3. Double-click on the second image to make the toolbar visible

What is the expected behavior?
The image toolbar should be positioned on the top of the selected image

Which versions of alloy-editor, and which browser / OS are affected by this issue? Did this work in previous versions?
Reproduced from version 2.11.8
Not reproduced on version 2.11.7