Python 3.12.3 [...] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import git
>>> git.Repo.clone_from("https://github.com/react-component/field-form", "field-form") # example repository
<git.repo.base.Repo '/tmp/field-form/.git'>
>>> r = git.Repo("field-form")
>>> c = r.commit("0e81dc0d69d198d644b44eb4f84d875777c03581") # commit where there is a space
>>> d1 = c.diff(c.parents[0])[0] # first diff
>>> d1.a_path
'.github/workflows/main.yml'
>>> d1.b_path
' .github/workflows/main.yml' # note the space in the beginning
>>> d2 = c.parents[0].diff(c)[0] # same diff but inverted commits
>>> d2.a_path
'.github/workflows/main.yml' # there is no space
>>> d2.b_path
'.github/workflows/main.yml'

>>> r = git.Repo("field-form")
>>> c = r.commit("0e81dc0d69d198d644b44eb4f84d875777c03581")
>>> d1 = c.diff(c.parents[0])[0] 
>>> d1.a_path
'.github/workflows/main.yml'
>>> d1.b_path
' .github/workflows/main.yml' # note the space
>>> d2 = c.parents[0].diff(c)[0]
>>> d2.a_path
' .github/workflows/main.yml' # the space is there
>>> d2.b_path
'.github/workflows/main.yml'