template CHANGELOG.md accidentally updated as if it is real.

[erights]

At #2673 (comment)

@kriskowal This first commit is the pristine state produced from

$ ./scripts/create-package.sh no-trapping-shim

See the voluminous CHANGELOG.md in that first commit, which I truncated in a subsequent commit. Is this a tooling bug, where the thing that updated CHANGELOG.md in general does not know about the one that serves as a template for new packages?

Do you expect to fix it by changing the tooling for updating CHANGELOG.md or by changing create-package.sh?