Bug 148761 Unable to copy a report item from template to report
Steps: 1. Create a template, add a Text item "t1" or others 2. Create template item using "t1" 3. Double click the template item and we get a report item again. 4. We copy the item, paste to another report file. Expected: the text item can be copied. Actual result: Nothing happened, not copied and no error msg.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/validators/ValidationExecutor.java
{
	/**
	 * The report design which is associated with this validation executor.
	 */
	private Module module;
	/**
	 * Constructs the validation executor with one opened report.
	 * 
	 * @param module
	 *            the report design containing this validation executor
	 */
	public ValidationExecutor( Module module )
	{
		this.module = module;
	}
	/**
	 * Performs all validation in the given validation node list. Each of the
	 * list is the instance of <code>ValidationNode</code>. This method is
	 * used for element's semantic check.
	 * 
	 * @param targetElement
	 *            the target element on which the validation is performed.
	 * @param nodes
	 *            list of validation nodes
	 * @return error list. Each one is the instance of
	 *         <code>SemanticException</code>.
	 */
	public List perform( DesignElement targetElement, List nodes )