getBranches = (onlineEditor, projectType) => {
      let editorBranch = `${onlineEditor}-${projectType}-output${branchSuffix}`;

      if (isLatest) {
        return [editorBranch, `${editorBranch}-${tag}`];
      }

      return [`${editorBranch}-${tag}`];
    }
If we're working with the latest tag, we want to update the default
branch for an editor as well as the tagged version.