title: ERROR: The instance or operation is not in an appropriate state to handle the request
body: <p>Using Google Cloud SQL I was attempting to restore my main instance to a prior backup, but first I wanted to clone the instance for the tables and databases that I didn't want reverted.
  After waiting over an hour for the clone, I canceled out of the clone and attempted to delete the cloned instance. However, the clone is now stuck in Maintenance status and attempting to delete I get the following error.</p>
  
  <pre><code>mycomputer:~ myuser$ gcloud sql instances delete cloned
  All of the instance data will be lost when the instance is deleted.
  
  Do you want to continue (Y/n)?  y
  
  ERROR: (gcloud.sql.instances.delete) The instance or operation is not in an appropriate state to handle the request.
  </code></pre>
  
  <p>The instance was created with the following command and then just exited out with CTRL+C after waiting too long.</p>
  
  <pre><code>mycomputer:~ myuser$ gcloud sql instances clone main cloned
  Cloning Cloud SQL instance.../ERROR: Caught socket error, retrying:[Errno 54] Connection reset by peer
  ERROR: Caught socket error, retrying: [Errno 54] Connection reset by peer
  Cloning Cloud SQL instance...|
  Cloning Cloud SQL instance...\^C
  
  Command killed by keyboard interrupt
  </code></pre>