https://bugs.gentoo.org/969201

API change in kmime
https://invent.kde.org/pim/kmime/-/commit/85384cfe2ff1881ed0e4cef578fb80522c0e0250

Fixes
https://invent.kde.org/office/marknote/-/commit/144241bef2a57c0edd4c614cfd52039abad5e7cb

Previous upstream fix that didn't work
https://invent.kde.org/office/marknote/-/commit/a9717cde83b59511f15bb6ca277a2447a6d89e16

diff --git a/src/maildirimport.cpp b/src/maildirimport.cpp
index aa60fee..e45c07f 100644
--- a/src/maildirimport.cpp
+++ b/src/maildirimport.cpp
@@ -85,10 +85,11 @@ void MaildirImport::import(const QUrl &maildir, const QUrl &destinationDir)
 
 #if KMIME_VERSION >= QT_VERSION_CHECK(6, 6, 44)
                 const auto subject = msg->subject(KMime::CreatePolicy::Create)->asUnicodeString();
+                const auto content = msg->decodedBody();
 #else
                 const auto subject = msg->subject(true)->asUnicodeString();
+                const auto content = msg->decodedContent();
 #endif
-                const auto content = msg->decodedBody();
 
                 QFile markdownFile(destinationDir.toLocalFile() + u'/' + cleanFileName(subject) + u".md"_s);
                 if (!markdownFile.open(QIODevice::WriteOnly)) {