The Code Dx branch to use as the parent if the specified "target branch" does not exist yet. The new branch will inherit the findings of the base branch. The branch must exist in the Code Dx project beforehand.
This field is ignored if a "target branch" is not specified, or if the target branch already exists.
This field is required if the "target branch" does not exist yet.
This value will be used as the "default branch" for new projects created when "Code Dx Project" is set to "Project Name", the specified project does not exist, and auto-create is enabled in that section.
("Branches" refer to branches within the Code Dx project, not SCM branches.)