Dropdups = 1 marks users also as duplicate instead of dropping them

= Revision 6306

= Issue Description

Dropdups = 1 marks users also as duplicate instead of dropping them.

= When the issue occurs User logs in from same IP.

= How the issue is reproducable

c 3 BERT OFF ON xx.xxx.51.135 4110 cccam ( 2.1.4-3191) 27.01.12 23:28:36 09:56:21 0000:0000 09:56:17 Duplicate

c 5 BERT OFF ON xx.xxx.51.135 4099 cccam ( 2.1.4-3191) 28.01.12 07:47:35 01:37:22 0000:0000 01:22:32 OK