gh-124452: Fix header mismatches when folding/unfolding with email message #130522

Job	Run time
Change detection / Compute changed files	14s
Check if Autoconf files are up to date	22s
Check if generated files are up to date	3m 36s
Address sanitizer	8m 24s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.0.15)	2m 32s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.1.7)	2m 51s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.2.3)	1m 55s
Windows MSI${{ '' }}	0s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.3.2)	2m 12s
Hypothesis tests on Ubuntu	5m 9s
CIFuzz	0s
Thread sanitizer / Thread sanitizer	3m 38s
WASI / build and test	6m 19s
Thread sanitizer (free-threading) / Thread sanitizer	7m 36s
Windows / build (arm64)	3m 8s
Windows (free-threading) / build (arm64)	2m 51s
Windows / build and test (Win32)	17m 9s
Windows (free-threading) / build and test (Win32)	24m 21s
Windows / build and test (x64)	16m 9s
Windows (free-threading) / build and test (x64)	23m 49s
macOS (free-threading) / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	6m 32s
macOS / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	5m 11s
macOS / build and test (macos-13)	11m 54s
Ubuntu / build and test (ubuntu-22.04)	7m 16s
Ubuntu (free-threading) / build and test (ubuntu-22.04)	9m 20s
Docs / Docs	2m 5s
Docs / Docs (Oldest Sphinx)	2m 0s
Docs / Doctest	29m 15s
All required checks pass	4s
	3h 25m 52s

Provide feedback