Inlite editor breaks dialogs from other editors in Chrome + TinyMCE 4.7

[mcaskill]

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

bug

What is the current behaviour?

On Chrome, dialogs are frequently broken when at least one Inlite editor is present alongside a classic editor.
Works fine if the inline editor does not use Inlite).

You will either have a blank dialog backdrop OR the dialog is created where the first toolbar button is.

Minimal demo of the problem and screen capture.

http://fiddle.tinymce.com/amgaab

What is the expected behavior?

The dialog should open in the proper location in the DOM and render its contents appropriately.

Which versions of TinyMCE, and which browser / OS are affected by this issue?
Did this work in previous versions of TinyMCE?

Bug tested on:

• macOS 10.13
• Google Chrome 64.0.3282.186
• TinyMCE 4.7.* (and edge)

Works fine on:

• Firefox 48
• TinyMCE 4.6.*

Works fine on Firefox.

[donShakespeare]

Same here, in the presence of any of my hidden stripped-down TinyMCE instances that I use to accomplish background stuff, the main inlite themed editor goes kaboom.

This is me trying to access the image dialog

[ghost]

I have also run into this issue. It seems to be caused by having two themes loaded on the same page, not necessarily the inlite theme. For example I can reproduce it with "modern" and "modern-copy". The theme that has its dialog opened first will function correctly whilst the second theme's dialog will break.

This issue also seems to be related to #4224

[SimonFc]

I'm closing this since the issue is limited to Tiny 4. If you encounter any similar issues when using the themes for Tiny 5 then open up a new issue so that we can take a look at it. Thanks!