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gh-143935: Email preserve parens when folding comments (GH-143936)
Fix a bug in the folding of comments when flattening an email message
using a modern email policy. Comments consisting of a very long sequence of
non-foldable characters could trigger a forced line wrap that omitted the
required leading space on the continuation line, causing the remainder of
the comment to be interpreted as a new header field. This enabled header
injection with carefully crafted inputs.
(cherry picked from commit
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| .. | ||
| data | ||
| __init__.py | ||
| __main__.py | ||
| test__encoded_words.py | ||
| test__header_value_parser.py | ||
| test_asian_codecs.py | ||
| test_contentmanager.py | ||
| test_defect_handling.py | ||
| test_email.py | ||
| test_generator.py | ||
| test_headerregistry.py | ||
| test_inversion.py | ||
| test_message.py | ||
| test_parser.py | ||
| test_pickleable.py | ||
| test_policy.py | ||
| test_utils.py | ||
| torture_test.py | ||