Set last updated timestamp on newly created changes

Otherwise the last updated timestamp will be set to the creation time.

Change-Id: I9043c0d4d5abe4548ccb3243368e6d840503626d
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
diff --git a/src/main/java/com/googlesource/gerrit/plugins/importer/ReplayChangesStep.java b/src/main/java/com/googlesource/gerrit/plugins/importer/ReplayChangesStep.java
index 64d26bd..e320d64 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/importer/ReplayChangesStep.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/importer/ReplayChangesStep.java
@@ -143,6 +143,7 @@
             fullName(c.branch)), c.created);
     change.setStatus(Change.Status.forChangeStatus(c.status));
     change.setTopic(c.topic);
+    change.setLastUpdatedOn(c.updated);
     return change;
   }