Directly after adding a translation, nodes are not synchronized

With a clean Drupal 7.7 or 7.8 install, activate modules:
- Core > Content translation,
- Core > Locale,
- i18n > Synchronize translations (7.x-1.0 or 7.x-1.x-dev, including i18n dependencies),
- Other > Variable (7.x-1.1)

Add a second language (ie. Dutch) and set the 'Basic page' entity type to:
- Multilingual support: Enabled, with translation,
- Synchronize translations: Body.

Add content, a 'Basic page':
- Language: English,
- Title and body: some test values.

Now go edit this node again, navigate to the translate page and add a translation for the second language. You will go to a page like: http://yourwebsite/node/add/page?translation=1&target=nl

After changing both Title and Body and saving the changes, the only Drupal message you receive is:

Basic page PAGENAME has been updated.

Synchronization has not been executed! Both nodes have different bodies.

Every next time you go edit the page (no matter what language), go to the translate page and edit the other language's version, you go to a page like: http://yourwebsite/node/2/edit

After saving you receive the following Drupal messages:

One node translation has been synchronized.
Basic page PAGENAME has been updated.

Now the bodies of both nodes are the same! :-)