Bug 188829 Move the item ,the trans of the model don't close.
1:New report design. 2:Add a Embedded image. 3:Add another imge , then drag the second imge to the first position. 4:Change the size of the first image. Expected: Image change the size. Now: Image size don't change.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/command/ContentCommandTest.java
* <td>exception thrown</td>
 * </tr>
 * <tr>
 * <td>{@link #testAdd()}</td>
 * <td>the target container is not a container</td>
 * <td>exception thrown</td>
 * </tr>
 * <tr>
 * <td></td>
 * <td>Trying to add more than one content into a slot when slot can only hold
 * one</td>
 * <td>exception thrown</td>
 * </tr>
 * <tr>
 * <td></td>
 * <td>ContentException.WRONG_TYPE</td>
 * <td>exception thrown</td>
 * </tr>
 * <tr>
 * <td></td>
 * <td>the content type is not match with the container</td>
 * <td>exception thrown</td>
 * </tr>
 * <tr>
 * <td></td>
 * <td>The destination slot is not found.</td>
 * <td>exception thrown</td>
 * </tr>
 * <tr>
 * <td>{@link #testCircularContent()}</td>