Version

1.67.0

Describe the bug

Consider you have an ini file produced by Ansible's blockinfile

# BEGIN
[profile test]
sso_region              = us-east-1
sso_registration_scopes = sso:account:access
region                  = us-east-1
output                  = json
# END

If you add new sections at the end of the file the library is going to strip # END part and Ansible won't be able to recognize the text block anymore

To reproduce

Use the ini file provided in the description and try to add a new sections at the end of the file

Expected behavior

Keep the '# END' comment after the section

Additional context

No response

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