title: React-intl const <FormattedMessage /> is giving [object object] as result
body: <p>I am using <code>&quot;react-intl&quot;: &quot;^2.4.0&quot;</code>, and <code>&quot;react&quot;: &quot;^16.2.0&quot;</code>.</p>
  <p>I am trying to assign the output of <code>&lt;FormattedMessage/&gt;</code> tag to a constant and put it in the input tag placeholder.</p>
  <p><img src="https://i.stack.imgur.com/vFdST.png" alt="Code Image" /></p>
  <p>Expected Output Input field with text in the respective language in it but it is coming [object object] inside the text box.</p>