Describe the bug

gh pr create ignores user instruction to not use the template

Steps to reproduce the behavior

On a repo with .github/pull_request_template.md

1. ∴vim README.md
2. ∴git commit -am "a useful log message"
3. ∴gh repo create
4. select these options:

? Title [gcp_compute_fake] require valid healthcheck name
? Choose a template  [Use arrows to move, type to filter]
  pull_request_template.md
> Open a blank pull request```
5. press 'e' at '? Body [(e) to launch nvim, enter to skip]

Expected vs actual behavior

expected behavior is observing the git commit log message ("a useful log message")

actual behavior is seeing the contents of the git log message as well as the contents of .github/pull_request_template.md