Fingerprints produced by this step are not used anywhere, and the parsing code has major limitations. See https://github.com/jenkinsci/docker-workflow-plugin/pull/149#issuecomment-451305522 and https://groups.google.com/d/msg/jenkinsci-dev/k13SfZcBWVg/iQghmCQrEAAJ
Fingerprints produced by this step are not used anywhere, and the parsing code has major limitations. See https://github.com/jenkinsci/docker-workflow-plugin/pull/149#issuecomment-451305522 and https://groups.google.com/d/msg/jenkinsci-dev/k13SfZcBWVg/iQghmCQrEAAJ