title: What is the purpose of `Build branch filters` in Continuous deployment trigger?
body: <p>A build pipeline can be tied to only 1 source branch. </p>
  
  <p>In release pipeline, we configure an artifact by selecting the source build pipeline. So a release artifact can be tied to only 1 build pipeline.</p>
  
  <p>What is the purpose of <code>Build branch filters</code> in Continuous deployment trigger?</p>