title: SearchKick(Elastic Search) freshly reindex specific record
body: <p>Hi I have one issue for reindexing record which was reindexed earlier with attribute having different datatype.</p>
  
  <p>eg: User 1 having date_of_birth as string while reindex and now i want to reindex that user with datetime column its crashing with error</p>
  
  <pre><code>"MapperParsingException[failed to parse [dob]]; nested: NumberFormatException"
  </code></pre>
  
  <p>Tried deleting the index for the record with following and reindex but did not worked.</p>
  
  <pre><code>User.searchkick_index.remove(user)
  </code></pre>