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: Topi Reiniö <topi.reinio@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/qdoc/htmlgenerator.cpp b/src/qdoc/htmlgenerator.cpp
index 4fbc04c92..e91827d3c 100644
--- a/src/qdoc/htmlgenerator.cpp
+++ b/src/qdoc/htmlgenerator.cpp
@@ -3985,7 +3985,7 @@ void HtmlGenerator::generateManifestFile(const QString &manifest, const QString
         // Include tags added via \meta {tag} {tag1[,tag2,...]}
         // within \example topic
         for (const auto &tag : en->doc().metaTagMap().values("tag")) {
-            const auto &tagList = tag.toLower().split(QLatin1Char(','));
+            const auto &tagList = tag.toLower().split(QLatin1Char(','), Qt::SkipEmptyParts);
             tags += QSet<QString>(tagList.cbegin(), tagList.cend());
         }