Double escaping in BaseSocialActivityInterpreter when using JSONValue

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.0 CE M5
• Fix Version/s: 6.1.30 EE GA3, 6.2.0 CE M5
• Component/s: Social Activity, ~ [Archived] Social Networking
• Labels: None
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/10640

When an interpreter uses the getJSONValue() method from BaseSocialActivityInterpreter to get the title but doesn't override wrapLink() or the other methods, the value gets escaped twice because getJSONValue() escapes it once and then wrapLink again.

Since we should escape at the latest possible moment, getJSONValue() should return the untouched value.