[j-nsp] 1000Base-T SFP shows Link Up without cable inserted

[Mathias Sundman]

I've just upgraded two of my MX5-T boxes to 11.4R7.5 and after that my 
3rd party 1000Base-T SFP (Transmode originals based on Finisar) started 
to show Link Up as soon as the SFP is inserted (no cable inserted).

On 11.2R5.4 it worked as it should. 11.4R1.14 that the boxes came with 
was also broken.

Bug or feature? Has anyone used any Juniper original 1000Base-T SFPs on 
the MX-5/10/40/80-T platform with JunOS 11.4?

masun at solir1> show version
Hostname: solir1
Model: mx5-t
JUNOS Base OS boot [11.4R7.5]
JUNOS Base OS Software Suite [11.4R7.5]
JUNOS Kernel Software Suite [11.4R7.5]
JUNOS Crypto Software Suite [11.4R7.5]
JUNOS Packet Forwarding Engine Support (MX80) [11.4R7.5]
JUNOS Online Documentation [11.4R7.5]
JUNOS Routing Software Suite [11.4R7.5]

masun at solir1> show chassis pic fpc-slot 1 pic-slot 1
FPC slot 1, PIC slot 1 information:
   Type                             10x 1GE(LAN) SFP
   State                            Online
   PIC version                 2.26
   Uptime                         2 days, 23 hours, 7 minutes, 20 seconds

PIC port information:
                           Fiber                    Xcvr vendor
   Port  Cable type        type  Xcvr vendor        part number       Wavelength
   0     GIGE 1000T        n/a   FINISAR CORP.      FCLF8521P2BTL-TR  n/a

masun at solir1> show interfaces ge-1/1/0
Physical interface: ge-1/1/0, Enabled, Physical link is Up
   Interface index: 158, SNMP ifIndex: 526
   Description: Link sthir2 for Logical Systems (VPLS Lab)
   Link-level type: Ethernet, MTU: 2000, Speed: 1000mbps, BPDU Error: None, MAC-REWRITE Error: None,
   Loopback: Disabled, Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Enabled,
   Remote fault: Online
   Device flags   : Present Running
   Interface flags: SNMP-Traps Internal: 0x0
   Link flags     : None
   CoS queues     : 8 supported, 8 maximum usable queues
   Current address: 08:81:f4:81:26:68, Hardware address: 08:81:f4:81:26:68
   Last flapped   : 2013-03-31 15:11:42 EDT (00:04:46 ago)
   Input rate     : 0 bps (0 pps)
   Output rate    : 0 bps (0 pps)
   Active alarms  : None
   Active defects : None
   Interface transmit statistics: Disabled