Bug 562515 - Reset sync option "Replace all data on this computer with your Weave data" is not handling local deletes correctly [r=mconnor]

Clear out any changed ids when wiping the client to prevent delete records from getting uploaded for these items.

services/sync/modules/engines.js

@@ -281,6 +281,7 @@ Engine.prototype = {
     this._tracker.ignoreAll = true;
     this._store.wipe();
     this._tracker.ignoreAll = false;
+    this._tracker.clearChangedIDs();
   },
 
   wipeClient: function Engine_wipeClient() {