If you add a button inside a Rich Text, it will split when you make a selection in it and drag it to the side.

• Type: Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: Master
• Fix Version/s: None
• Component/s: CKEditor
• Labels: None
• Fix Priority: 2

Description
If you add a button inside a Rich Text, it will split when you make a selection in it and drag it to the side.
Steps to Reproduce

1. Go to Content & Data > Documents and Media > Documents Types > New;
2. Add a new Document Type with a Rich Text field;
3. Add a new Document using the created Document Type;
4. Click on "Source<>" and add a button in the Rich Text;
5. Click on "Source<>" again and you will see the created button;
6. Try to select the button's name and drag it to the right side;
7. See that the button splits the name and creates other buttons.

Expected Result
The button should not split when you make a selection on it and drag it to the side.
Actual Result
If you add a button inside a Rich Text, it will split when you make a selection in it and drag it to the side. (ActualResult_Feb09_LPS-127688.mp4)

Reproduced In
master: 850174fbb0df98d4d065719ecef79c5d980512a7