qdoc: Ignore empty example meta tags

Incorrectly formatted parameter for the \meta tag command may result
in empty tags, and cause an assert later on.

Change-Id: I504e038f119833615976ba44549934ccc70aea31
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
(cherry picked from commit c8500ae622f47dee84cb1ee2dbf167921de3e5c1)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/qdoc/manifestwriter.cpp b/src/qdoc/manifestwriter.cpp
index 1bca142b2..7c312e550 100644
--- a/src/qdoc/manifestwriter.cpp
+++ b/src/qdoc/manifestwriter.cpp
@@ -373,7 +373,7 @@ void ManifestWriter::includeTagsAddedWithMetaCommand(const ExampleNode *example)
     const QStringMultiMap *metaTagMap = example->doc().metaTagMap();
     if (metaTagMap) {
         for (const auto &tag : metaTagMap->values("tag")) {
-            const auto &tagList = tag.toLower().split(QLatin1Char(','));
+            const auto &tagList = tag.toLower().split(QLatin1Char(','), Qt::SkipEmptyParts);
             m_tags += QSet<QString>(tagList.constBegin(), tagList.constEnd());
         }
     }