title: conditionExpression on sequence does not work when deploying to Camunda
body: <p>I try to create a BPMN process where the flows out of a user task are conditional, based on the data in the task. The modeler (I tried 1.1.1, 1.2.0, 1.2.1 and 1.2.2) gives this BPMN snippet:</p>
  
  <pre><code>&lt;bpmn:sequenceFlow id="SequenceFlow_1x3p2i8" sourceRef="Task_088dhgw" targetRef="EndEvent_1hc01v6"&gt;
    &lt;bpmn:conditionExpression xsi:type="bpmn:tFormalExpression"&gt;${true}&lt;/bpmn:conditionExpression&gt;
  &lt;/bpmn:sequenceFlow&gt;
  </code></pre>
  
  <p>I am building my own dropwizard service, using camunda version 7.5.0 (also tried 7.4.0 and 7.3.0). When the process engine processes the bpmn, it raises an exception:</p>
  
  <pre><code>Exception in thread "main" org.camunda.bpm.engine.ProcessEngineException: ENGINE-08043 Exception while performing 'Deployment of Process Application Camunda Servlet Process Application' =&gt; 'Deployment of process archive 'null': ENGINE-09005 Could not parse BPMN process. Errors: 
  * Invalid type, only tFormalExpression is currently supported | bicycles.bpmn | line 22 | column 67
  </code></pre>
  
  <p>Huh? the type is tFormalExpression. Also, a tFormalExpression in a timer does work. 
  What is wrong here? 
  I got the same error also on sequenceFlows coming out of a xor-gateway.</p>