Trigger workflow on Github push - Pipeline plugin - Multibranch configuration : <p>We are using the pipeline plugin with multibranch configuration for our CD. 
We have checked in the Jenkinsfile which works off git.</p>

<pre><code>git url: "$url",credentialsId:'$credentials'
</code></pre>

<p>The job works fine, but does not auto trigger when a change is pushed to github. 
I have set up the GIT web hooks correctly. </p>

<p>Interestingly, when I go into a branch of the multibranch job and I click "View Configuration", I see that the "Build when a change is pushed to Github" is unchecked. There is no way to check it since I can not modify the configuration of the job (since it takes from parent) and the same option is not there in parent. </p>

<p>Any ideas how to fix this? </p>
