The pull request has only one (non-merge) commit and in this case Github will use it as the default commit message when merging. The pull request title doesn't match the commit though ("chore: disable option `requireReturnForObjectLiteral` in `arrow-body-style`" vs. "chore: disable option "requireReturnForObjectLiteral" in "arrow-body-style""). Please update the pull request title accordingly to avoid surprises.