Permissions of asset are not copied over when making a copy the asset

• Type: Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: 7.0.X, 7.1.X, Master
• Fix Version/s: None
• Component/s: Core Infrastructure
• Labels: None
• Fix Priority: 3
• Git Pull Request: https://github.com/shuyangzhou/liferay-portal/pull/6718

Permissions of asset are not copied over when making a copy the asset

For Journal article, ADT, DDM structures, DDM templates, Wiki page, Mobile device Families, we have copy mechanism, however their permissions are not copied over.

Steps to reproduce for Journal Article

1. Go to Content > Web Content
2. Add a Basic Web Content
3. Change permission setting of the web content to other than default
4. Copy the Web content
5. Open permission setting of the Web content duplicated (the new one)

Expected Behavior
Web content is duplicated with the same permission setting.

Actual Behavior
Web content is duplicated with default permission setting.

Behavior clarification
SME and PT confirmed that permissions should be copied as well.
See -LPP-31281- for more details (includes some information on how the fix should look)

Reproduced in
7.0.x (9d45c05175a83889e5a2f083561a06fa2bc5e956)
master (18602811e73adfbd33e76dfce4cf9df18ea4fb9a)