Finish the forwardport of r1146401 okular/branches/KDE/4.5/kdegraphics/okular/part.cpp:

Only start watching the file in case if it wasn't removed, thus was modified
Patch by Victor Blázquez
Fixes bug 234139

svn path=/trunk/KDE/kdegraphics/okular/; revision=1146408

part.cpp

@@ -1157,6 +1157,8 @@ void Part::slotFileDirty( const QString& path )
         // Only start watching the file in case if it wasn't removed
         if (QFile::exists(localFilePath()))
             m_dirtyHandler->start( 750 );
+        else
+            m_fileWasRemoved = true;
     }
     else
     {