I understand that there are issues with 2.7.3 final, some but not all of which are resolved. I would personally prefer to see 2.7.3 final in Wheezy, as it will provide a stable base release which ought to be common across different distros.
Better I think to unblock 2.7.3-5 (now, in sid) and file rc bugs for any failures that might still exist.
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