Enabling NewRelic interferes with other wordpress plugins

The issue appears to have been reported in the past.

Fallowing that thread it appears the problem stems from this part of the code.

Is there a reason for the array_shift there? It removes the role from the global object which means it’s not there for other plugins to access. Wouldn’t it be better to use something like $role = $current_user->roles[0];

https://wordpress.org/plugins/w3-total-cache/