From d4085e3dbfc2472e433aabc0c93eeea79837856a Mon Sep 17 00:00:00 2001
From: Eike Ziller <eike.ziller@qt.io>
Date: Thu, 19 Sep 2024 14:28:57 +0200
Subject: [PATCH] Mimedatabase: Fix `inherits` and collecting parents

Amends 377198641c627cf5c3f57e4c9415e574373f927b

The DuplicateTracker needs to return true for `hasSeen` if the value was
*not* inserted.

Change-Id: Id4ddc75b5a5a8d33094c358687766115dd5f6384
Reviewed-by: Marcus Tillmanns <marcus.tillmanns@qt.io>
---
 src/libs/utils/mimetypes2/mimedatabase.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libs/utils/mimetypes2/mimedatabase.cpp b/src/libs/utils/mimetypes2/mimedatabase.cpp
index 2f4d36d39d5..4433e3d1819 100644
--- a/src/libs/utils/mimetypes2/mimedatabase.cpp
+++ b/src/libs/utils/mimetypes2/mimedatabase.cpp
@@ -43,7 +43,7 @@ namespace Utils {
 template <typename T>
 class DuplicateTracker {
 public:
-    bool hasSeen(const T &v) { return Utils::insert(seen, v); }
+    bool hasSeen(const T &v) { return !Utils::insert(seen, v); }
 private:
     QSet<T> seen;
 };