diff text.original/qfontdatabase_win.cpp text/qfontdatabase_win.cpp
591a592,595
>     // PATCH from QTBUG-26861 applied by arndt.stedler@gmail.com
>     if ( fontFamily != NULL )
>         fontFamily->Release();
>     // end PATCH from QTBUG-26861
1110a1115,1118
>     // PATCH from QTBUG-26861 applied by arndt.stedler@gmail.com
>     // Prevent calling insertEngine if not needed because it increments the count even if nothing is inserted
>     bool bInsert=false;
>     // end PATCH from QTBUG-26861
1111a1120,1122
>     	// PATCH from QTBUG-26861 applied by arndt.stedler@gmail.com
>         bInsert=true;
>     	// end PATCH from QTBUG-26861
1128c1139,1142
<     QFontCache::instance()->insertEngine(key, fe);
---
>     // PATCH from QTBUG-26861 applied by arndt.stedler@gmail.com
>     if ( bInsert )
>     // end PATCH from QTBUG-26861
>         QFontCache::instance()->insertEngine(key, fe);
diff text.original/qfontenginedirectwrite.cpp text/qfontenginedirectwrite.cpp
190a191,193
>     // PATCH from QTBUG-26861 applied by arndt.stedler@gmail.com
>     cache_cost = (m_ascent.toInt() + m_descent.toInt()) * m_xHeight.toInt() * 2000;
>     // end QTBUG-26861