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/metadata/ElementDefn.java
* 
	 * @return the expression property definition list.
	 */
	public List getExpressions( )
	{
		return getPropertyListWithType( getProperties( ),
				PropertyType.EXPRESSION_TYPE );
	}
	/**
	 * Returns the expression property definition list of this element
	 * definition. Each one is the instance of <code>PropertyDefn</code>.
	 * 
	 * @return the expression property definition list.
	 */
	public List getLocalExpressions( )
	{
		return getPropertyListWithType( getLocalProperties( ),
				PropertyType.EXPRESSION_TYPE );
	}
	/**
	 * Returns the property definition list each of which is defined in given
	 * property definition list with the given type.
	 * 
	 * @param propList
	 *            the property definition to search
	 * @param type
	 *            property type code, It's the constant defined in
	 *            <code>PropertyType</code>.
	 * @return the property definition list
	 */