Bug 168026 Still use the existing data binding even though the aggregate is different
I had a table in which a data binding which aggregates on a group. When I insert a new data item in the report, although the expressions are same, it aggregates on All, then it refered to the existing data binding. The expected behavior would be a new data binding is created with different aggregates.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ScalarParameterHandle.java
{
		setStringProperty( PROMPT_TEXT_ID_PROP, promptIDValue );
	}
	/**
	 * Returns the prompt text ID.
	 * 
	 * @return the prompt text ID.
	 * 
	 */
	public String getPromptTextID( )
	{
		return getStringProperty( PROMPT_TEXT_ID_PROP );
	}
	/**
	 * Returns the localized text for prompt text. If the localized text for the
	 * text resource key is found, it will be returned. Otherwise, the static
	 * text will be returned.
	 * 
	 * @return the localized text for the prompt text
	 */
	public String getDisplayPromptText( )
	{
		return getExternalizedValue( PROMPT_TEXT_ID_PROP, PROMPT_TEXT_PROP );
	}
	/**
	 * Set the value for the list limitation number. This property is used to
	 * limit the parameter display list.
	 * 
	 * @param listLimit
	 *            The limited number.