title: Git revert merge to specific parent
body: <p>I have a git repo and am having trouble reverting a merge. The current hash is 0ce2ca0b35f59af267241cf4d40d16a3e13ba6f3. and it has two parents:</p>
  
  <pre><code>df1acf5f54426d30f12c6b4558c3dd922297aae3
  e19b912404ffd3c153ccac3072dbf22396896d2a
  </code></pre>
  
  <p>doing the following will revert to df1acf5f54426d30f12c6b4558c3dd922297aae3</p>
  
  <pre><code>git revert -m 1 0ce2ca0b35f59af267241cf4d40d16a3e13ba6f3
  </code></pre>
  
  <p>how do I revert to e19b912404ffd3c153ccac3072dbf22396896d2a?</p>