Bug 147676 [regression]Visibility set in the first col will affect the second col
Description: Visibility set in the first col will affect the second col Steps to reproduce: 1. Insert a grid(3*3), insert contents to each cell. 2.Set the first col to hide all in visibility and preview Expected result: Only the first col is hidden. Actual result: The second col is hidden, too. If you set the second col in step2, the third col will disappear.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/html/HTMLAbstractLM.java
/**
	 * layout the content and its children.
	 * 
	 * It can be called in three status: 1. start, the first time it is called,
	 * in this status, it first check if it need page-break-before,
	 * 
	 * 2. inprogress, the second or more time it is called. In this status, it
	 * tries to layout the content and its children to the current page.
	 * 
	 * 3. end, the last time it is called. In this status, it means all the
	 * content has been layout, it is the time to handle the page-break-after.
	 */
	public boolean layout( )
	{
		switch ( status )
		{
			case STATUS_INTIALIZE:
				
				
				
				if ( handleVisibility( ) )
				{
					status = STATUS_END;
					return false;
				}
				
				
				if ( isPageBreakBefore( ) )
				{
					status = STATUS_START;