title: Multiple pipelines triggered on the same repository
body: <p>I have one application repo with two branches called stage and master, I configured 2 pipelines(build, push to ACR and deploy to AKS on different namespaces staging and production respectively in AzureDevops) for each branch.</p>
  
  <p>Now, whenever I commit the code in stage branch, 2 pipelines are generating. one is stage pipeline which needs to execute on the commit. That's fine but master configured pipeline is also executing the stage pipeline. 
  Therefore, for every commit two times build is happening (one is by stage and other is by master), therefore two images are push to ACR for the single change and two times deploy is happening.</p>