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
* <table border="1" cellpadding="2" cellspacing="2" style="border-collapse:
 * collapse" bordercolor="#111111">
 * <th width="20%">Method</th>
 * <th width="40%">Test Case</th>
 * <th width="40%">Expected</th>
 * 
 * <tr>
 * <td>{@link #testMovePosition()}</td>
 * <td>Add three content to the container: A ,B ,C.Move A to C'position.</td>
 * <td>in container: B,C,A</td>
 * </tr>
 * 
 * <tr>
 * <td></td>
 * <td>Move C to A's position.</td>
 * <td>in container: B,A,C</td>
 * </tr>
 * <tr>
 * <td></td>
 * <td>Move B to A's position.</td>
 * <td>in container: A,B,C</td>
 * </tr>
 * <tr>
 * <td></td>
 * <td>Move B to position 5 which is not existed in this container.</td>
 * <td>in container: A,C,B</td>
 * </tr>
 * <tr>
 * <td>{@link #testMoveSamePosition()}</td>
 * <td>The new position is the same as the original one.</td>