title: How to negate conditional validation in TYPO3>Typoscript>Formhandler?
body: <p>I would like to check whether a field has a value other than "MasterValue". is it true then it must be another field tested for the validation.</p>
  
  <p>But the assignment operator "!=" does not work. With "=" it works and show the required field message.</p>
  
  <p>Typoscript:</p>
  
  <pre><code>if {
      1 {
          conditions {
              OR1.AND1 = nationality!=MasterValue
          }
          isTrue {
              validators.1.config.fieldConf {
                  residence_permit {
                      errorCheck.1 = required                                     
                  }
              }
          }
  
      }
  } # if 
  </code></pre>
  
  <p>Versions: TYPO3 4.5.2, Formhandler 0.9.12</p>
  
  <p>Thx</p>