SVN commit 730518 by orlovich:

Don't miraculously not-crash on trying to get RenderWidget's widget pointer 
out of a RenderFieldSet, but rather work properly for the right reason.


 M  +1 -1      html_formimpl.cpp  


--- branches/KDE/3.5/kdelibs/khtml/html/html_formimpl.cpp #730517:730518
@@ -963,7 +963,7 @@
     if (id() == ID_BUTTON)
 	return true;
 
-    if (!m_render)
+    if (!m_render || !m_render->isWidget())
 	return false;
 
     QWidget* widget = static_cast<RenderWidget*>(m_render)->widget();