Social group vbo action causes wsod error

Problem/Motivation

When utilizing Social Views Bulk Operations for the Group Management field on the 'Manage Members' view page and subsequently creating a custom VBO action, the action fails when executed on group content entities causing WSOD page.

Steps to reproduce

1. Create a custom VBO action.
2. Enable that action on the 'Group Manage Members' view under Social Views Bulk Operations for the Group Management field.
3. Execute the action, and observe that the website encounters an error instead of redirecting back to the 'Group Manage Members' page.

Proposed resolution

Add condition to check if Url route object is not unrouted.