title: log4net is not writing to two RollingFileAppenders
body: <p>This is my app config</p>
  
  <pre><code>   &lt;log4net&gt;
      &lt;root&gt;
        &lt;level value="ALL" /&gt;
        &lt;appender-ref ref="RollingFileAppender" /&gt;
      &lt;/root&gt;
      &lt;appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender"&gt;
        &lt;file type='log4net.Util.PatternString' value='%property{LogPath}\%property{LogFileName}' /&gt;
        &lt;appendToFile value="true" /&gt;
        &lt;rollingStyle value="Size" /&gt;
        &lt;maxSizeRollBackups value="5" /&gt;
        &lt;maximumFileSize value="10MB" /&gt;
        &lt;staticLogFileName value="true" /&gt;
        &lt;layout type="log4net.Layout.PatternLayout"&gt;
          &lt;conversionPattern value="%date %level [%thread] - %message%newline" /&gt;
        &lt;/layout&gt;
      &lt;/appender&gt;   
      &lt;appender name="PerformanceLogger" type="log4net.Appender.RollingFileAppender"&gt;
        &lt;file type='log4net.Util.PatternString' value='%property{LogPath}\%property{PerformanceLogFileName}' /&gt;
        &lt;appendToFile value="true" /&gt;
        &lt;rollingStyle value="Size" /&gt;
        &lt;maxSizeRollBackups value="1" /&gt;
        &lt;maximumFileSize value="2MB" /&gt;
        &lt;staticLogFileName value="true" /&gt;
        &lt;layout type="log4net.Layout.PatternLayout"&gt;
          &lt;conversionPattern value="%date %level [%thread] - %message%newline" /&gt;
        &lt;/layout&gt;
      &lt;/appender&gt;
      &lt;logger Name="PerformanceLogger" additivity="false"&gt;
        &lt;level value="ALL"/&gt;
        &lt;appender-ref ref="PerformanceLogger"/&gt;
      &lt;/logger&gt;
    &lt;/log4net&gt;
  </code></pre>
  
  <p>When I try to get loggers and write to it. It just creates File for PerformanceLogger but does not write to it.</p>
  
  <pre><code>log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
  performaceLog = LogManager.GetLogger("PerformanceLogger");
  </code></pre>
  
  <p>but my <code>log.Info("test");</code> works fine and it creates a file and also writes to it.</p>
  
  <p>Any Advice on this, please?</p>