Did you find pipelines caused by external hooks? If github supports hooks (I don't know that), you can do something like below in the hook message. This will start work only if the code has been ported to the development branch.
while read oldrev newrev ref do if [[ $ref =~ .*/development$ ]]; then curl -s http://jenkins:8080/job/stage/build echo Jenkins pipeline triggered by calling the webservice fi done
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