When trying to push a docker image with a new tag after previously pushing, I am seeing this error:

`/opt/wavity/jenkins/workspace/Docker/docker/repo@tmp/durable-66b3426d/script.sh: line 3: syntax error near unexpected token \`||'`

Which I believe is referring to this line: https://github.com/jenkinsci/docker-workflow-plugin/blob/223612bc8378cc3e02cc6fecee1416c5bd533af9/src/main/resources/org/jenkinsci/plugins/docker/workflow/Docker.groovy#L157

Example script:

node {
  img = docker.build("project:1.0.0-SNAPSHOT")
	docker.withRegistry('', 'wavity-docker-hub') {
		img.push();
		img.push('${Branch}-SNAPSHOT-Thu') // force flag doesn't seem to fix
	}
}