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gh-144156: Fix email header folding concatenating encoded words #144692

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Merged
bitdancer merged 14 commits into from
Feb 19, 2026
Merged

gh-144156: Fix email header folding concatenating encoded words #144692

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b5925e0
Fix email header wrapping omitting white space
robsdedude Feb 10, 2026
1a7824e
📜🤖 Added by blurb_it.
blurb-it[bot] Feb 10, 2026
fb23a6e
fixup! Fix email header wrapping omitting white space
robsdedude Feb 10, 2026
050491c
fixup! Fix email header wrapping omitting white space
robsdedude Feb 11, 2026
ed6f197
Formatting
robsdedude Feb 11, 2026
91b4b3b
Extend news fragment
robsdedude Feb 12, 2026
d5f5001
Formatting
robsdedude Feb 12, 2026
15e6618
Fix comment
robsdedude Feb 12, 2026
902ec59
Faster and more readable last_word_is_ew tracking
robsdedude Feb 12, 2026
a1cfe3c
Fix broken application of news fragment suggestion
robsdedude Feb 13, 2026
45022be
Simplify code
robsdedude Feb 13, 2026
ccf399d
Fix related WSP folding bug
robsdedude Feb 13, 2026
0d694d6
Inline helper function
robsdedude Feb 14, 2026
a433ab1
Flip case order for readability and brevity
robsdedude Feb 18, 2026
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Fix broken application of news fragment suggestion
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@robsdedude
robsdedude committed Feb 13, 2026
commit a1cfe3cfb2dd4c0dfcd9c9e608e22da4c0b3a9bc
2 changes: 0 additions & 2 deletions Misc/NEWS.d/next/Core_and_Builtins/2026-02-10-22-05-51.gh-issue-144156.UbrC7F.rst
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Original file line number Diff line number Diff line change
@@ -1,3 +1 @@
Fix folding of email headers violating `RFC 2047`_ with two consecutive encoded words without separating linear-white-space.

Fix the folding of headers by the :mod:`email` library when :rfc:`2047` encoded words are used. Now whitespace is correctly preserved and also correctly added between adjacent encoded words. The latter property was broken by the fix for gh-92081, which mostly fixed previous failures to preserve whitespace.