In AppVeyor we get the extended part of the Git commit message using the APPVEYOR_REPO_COMMIT_MESSAGE_EXTENDED environment variable, but I can't see an equivalent in Azure Pipelines.
If I create a bash step containing printenv | sort to view all the available environment variables in my YAML pipeline then the output indicates that the BUILD_SOURCEVERSIONMESSAGE only contains the first line of the commit message, and no EXTENDED equivalent exists. I can't see anything in the docs either. Our repo is hosted in GitHub rather than in Azure DevOps if this makes a difference.
Is possible to get the extended commit message in an Azure Pipeline?