title: The compile time user.agent value does not match the runtime user.agent value
body: <p>There is an app I used to run in Mozilla, but I decided to use Chrome. I chose <code>BlahBlahBlahSafari.gwt.xml</code> (that contains <code>&lt;set-property name="user.agent" value="safari" /&gt;</code>) when compiling project in Eclipse with a help of <code>Google/GWT Compile</code> menu option and the right entry point module in Eclipse. As soon as JS is generated when the project is compiled, I thought I wouldn't have any problems. But I got this message:</p>
  
  <pre><code>ERROR: Possible problem with your *.gwt.xml module file.
  The compile time user.agent value (gecko1_8) does not match the runtime user.agent value (safari). Expect more errors.
  </code></pre>
  
  <p>Arguments in the <code>Run Configurations...</code> menu in Eclipse seems to be okay. What can be a reason for such a behavior and what didn't I take into account? Thanks in advance.</p>