Are you saying that if `gzip` configs are present anywhere in the config file then we won't turn on gzip?  So if we have:
```
http {
  server {
    gzip ...
  }
  server {
    pagespeed ...
  }
}
```
Then only the first server will have gzip while if instead we had:
```
http {
  server {
    pagespeed ...
  }
  server {
    pagespeed ...
  }
}
```
Then both servers would have gzip?  That's not ideal.  Can we make it so we roll back the pagespeed gzip only if there's a regular gzip configuration in the same config tree?