title: How to reset mysql modes to default after doing SET sql_mode = ''
body: <p>I accidentally did <code>SET sql_mode = ''</code> while trying to disable <code>ONLY_FULL_GROUP_BY</code> which resets all modes currently enabled. How can I revert to the default settings? I'm running <code>MySQL 5.7.20</code> on a Homestead Vagrant box.</p>
  
  <p>Thanks</p>