title: How can i change value of observable inside of subscribe function?
body: <p>How can i change value of observable inside of subscribe function?
  For example</p>
  
  <p>JS Model:</p>
  
  <pre><code>function Model(){
      self = this;
      self.Test = ko.observable(2);
      self.Test.subscribe(function (){
        if (/**Some bool expression**/) {
           self.Test(2);
        }
      });
  }
  </code></pre>
  
  <p>HTML:</p>
  
  <pre><code>&lt;input type="radio" value="1" data-bind="checked:Test" /&gt;
  &lt;input type="radio" value="2" data-bind="checked:Test" /&gt;
  &lt;input type="radio" value="3" data-bind="checked:Test" /&gt;
  </code></pre>
  
  <p>By default second radio input is checked. After I clicked on first radio, both first and second is selected.</p>
  
  <p><img src="https://i.stack.imgur.com/W4Ot3.png" alt="enter image description here"></p>
  
  <p><strong>UPDATED:</strong>
  It is happens when I include both jQuery and knockout. If remove jquery then all is Ok.
  But it is just test page. In real project I need to use jQuery in some places, and in this case I can not remove it.</p>
  
  <p><a href="http://jsfiddle.net/k0lpak/9S96U/" rel="nofollow noreferrer">Sample</a>.
  Source of test page:</p>
  
  <pre><code>&lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
      &lt;head&gt;
          &lt;script type="text/javascript" src="knockout-2.1.0.js"&gt;&lt;/script&gt;
          &lt;script type="text/javascript" src="jquery-1.6.4.js"&gt;&lt;/script&gt;
          &lt;script type="text/javascript"&gt;
              function Model(){
                  self = this;
                  self.Test = ko.observable(2);
                  self.Test.subscribe(function (){
                    if (true) {
                       self.Test(2);
                    }
                  });
              }
          &lt;/script&gt;
      &lt;/head&gt;
  &lt;body&gt;
      &lt;input type="radio" value="1" data-bind="checked:Test" /&gt;
      &lt;input type="radio" value="2" data-bind="checked:Test" /&gt;
      &lt;input type="radio" value="3" data-bind="checked:Test" /&gt;
  &lt;/body&gt;
  &lt;script type='text/javascript'&gt;
      ko.applyBindings(new Model());
  &lt;/script&gt;
  &lt;/html&gt;
  </code></pre>