Ticket 50232 - export creates not importable ldif file
    
    Bug: If the RUV entry hasa  smaller entryid than the suffix entry it will be
    	exported before the suffix. If that ldif is used for import the RUV entry
    	is skipped and a new one generated with a different database generation
    
    Fix: Before exporting the RUV check that the suffix is alread exported, if not
    	make the RUV entry pending and write it after all othere entries
    
    Reviewed by: tbordaz, wbrown. Thanks