From 9e23338b002cd14d8a9ad191526a7950e72d97e9 Mon Sep 17 00:00:00 2001
From: Albert Astals Cid <aacid@kde.org>
Date: Sun, 20 Dec 2020 00:46:29 +0100
Subject: [PATCH] Fix opening markdown files

In d2ae2c283df3d42e72a964d8891e0915f8f3a94b we introduced a tweak that
broke opening markdown files.

what we really want is this:
 * If the mimetype from the filename is text (or children) but looking
   at the data says it's not text, then try opening first opening with
   the data suggeted mimetype
 * But if the data suggested mimetype says it's text, use the filename
   suggested mimetype since for example, the only way to really
   differentiate markdown from text is the filename, so trust that

BUGS: 430538
---
 part/part.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/part/part.cpp b/part/part.cpp
index 536e412a4..8d57ed0d5 100644
--- a/part/part.cpp
+++ b/part/part.cpp
@@ -1473,8 +1473,10 @@ bool Part::openFile()
         }
 
         if (mimes[0].inherits(QStringLiteral("text/plain"))) {
-            QMimeType contentMime = db.mimeTypeForFile(fileNameToOpen, QMimeDatabase::MatchContent);
-            mimes.prepend(contentMime);
+            const QMimeType contentMime = db.mimeTypeForFile(fileNameToOpen, QMimeDatabase::MatchContent);
+            if (contentMime.name() != QLatin1String("text/plain")) {
+                mimes.prepend(contentMime);
+            }
         }
     } else {
         mimes << pathMime;