IE - loaded twice when added image to wiki

• Type: Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: 7.0.10.13 DXP SP13, 7.0.X, 7.1.X, 7.2.X
• Fix Version/s: None
• Component/s: Wiki
• Labels:
  • front-end
• Fix Priority: 3
• Browsers:
  Internet Explorer 11
• QA Test Name:
  • Manual_Environment_Collaboration
• QA Test Score: 5

Steps to reproduce:

1. Add a wiki portlet to page;
2. Add a new thread, fill title;
3. Click "This page is empty. Edit it to add some text";
4. Add one image in content field.

Expected Result:
One image loaded in content field.

Actual Result:
Two same images loaded in content field.