Multiple successful messages are displayed when there is more than one Web Content Display

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.3.X, Master
• Fix Version/s: 7.3.10 DXP FP1, 7.3.10.1 DXP SP1, 7.3.6 CE GA7, 7.3.X, 7.4.13 DXP GA1, Master
• Component/s: Content Display Widgets > Web Content Display widget
• Labels:
  • ee-bp
  • ee-ts
  • liferay-dxp-73-sp1
  • liferay-fixpack-dxp-1-7310
• Branch Version/s:
  7.3.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/liferay-echo/liferay-portal/pull/3811

Steps to reproduce

1. Start a clean bundle of Liferay
2. Go to Site Builder -> Pages and create a widget page.
3. Add a Web Content Display and then add a Basic Web Content to it. 
4. Edit the web content and publish, and note that 1 success message appears
5. Add a second Web Content Display
6. Edit the web content in the first Web Content Display and publish. Note that 1 success message appears.
7. Add a Basic Web Content to the second Web Content Display and publish. 
8. Edit either web content and publish.

 Expected Results: Only one success message appears
 Actual Results: Two success messages appear. On further testing, a success message will appear for every web content display that has web content in it, when editing and publishing any web content.

Verified on master hash: c33cc433de705c786a03eae1a242e4bb5fb4550d