Bug 135265 Paste to a wrong column
Steps to reproduce: 1.Open the attached file 2.Choose the column[2] which contains a label , copy and paste to column[3] Expected result: It will be pasted to column[3] Actual result: It is pasted to column[4] The related bug is #103448
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
assert !ns.contains( name );
			ns.insert( element );
		}
		for ( int i = 0; i < defn.getSlotCount( ); i++ )
		{
			ContainerSlot slot = element.getSlot( i );
			assert slot != null;
			for ( int pos = 0; pos < slot.getCount( ); pos++ )
			{
				DesignElement innerElement = slot.getContent( pos );
				buildNameSpaceAndIDMap( module, innerElement );
			}
		}
	}
	/**
	 * Adds a new Translation entry to the module. A report file can reference
	 * message IDs that are defined by the customers. One entry of
	 * <code>Translation</code> represents a translated message for a specific
	 * locale.
	 * <p>
	 * 
	 * @param translation
	 *            new entry of <code>Translation</code> that are to be added
	 *            to the module.
	 */
	public void addTranslation( Translation translation )
	{
		translations.add( translation );
	}
	/**