When pushing an annotated tag to rubygem-simp-beaker-helpers following the procedures in the SIMP readthedocs procedure, the Travis CI pipeline will:
Successfully run spec tests
Successfully publish the gem to rubygems.org
Fail to create a GitHub release
An example failure from the release of simp-beaker-helpers 1.18.3:
This issue has affected all releases since at least 1.17:
The problem seems likely to have been present since much earlier, but undetected—the markdown formatting of most earlier GitHub releases suggests that they were initiated from the GitHub releases UI/API instead of pushing annotated tags.