Cannot upload Multiple Documents due to JS error

• Type: Regression Bug
• Status: Closed
• Resolution: Duplicate
• Affects Version/s: Master
• Fix Version/s: None
• Component/s: DM
• Labels:
  • QA-AUTOMATION
  • QUARANTINE_TEST
• Fix Priority: 5
• QA Test Name:
  • LocalFile.Staging#StagingMultipleDM
• QA Test Score: 5

To reproduce:
1. add a Documents and Media widget to the page
2. select Multiple Documents from menuitems
3. browse for files to upload
4. click on Publish button

Actual result:
JS error is thrown to console

Uncaught TypeError: commonFileMetadataContainer.load is not a function

Upload is not successful

Expected:
Files to be uploaded

Tested on master 957fd90