Bug 315181 [Automation][Regression]Grid border was messed in PDF
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/nLayout/area/impl/RowArea.java
public SplitResult split( int height, boolean force ) throws BirtException
	{
		if ( force )
		{
			return _split( height, force );
		}
		else if ( isPageBreakInsideAvoid( ) )
		{
			if ( isPageBreakBeforeAvoid( ) )
			{
				return SplitResult.BEFORE_AVOID_WITH_NULL;
			}
			else
			{
				_splitSpanCell( height, force );
				needResolveBorder = true;
				return SplitResult.SUCCEED_WITH_NULL;
			}
		}
		else
		{
			return _split( height, force );
		}
	}
	protected void _splitSpanCell( int height, boolean force )
			throws BirtException
	{
		if ( cells.length != children.size( ) )
		{