Changing this line and adding the lines below does not look correct to me.  The vsite context is not required when calling node_access for a group node.  It is better to let vsite_access take care of this. https://github.com/openscholar/openscholar/blob/SCHOLAR-3.x/openscholar/modules/vsite/modules/vsite_access/vsite_access.module#L112


Why is the below not sufficient?
```
parent::access_space($account) && node_access('view', $this->group, $account); 
```