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NM 0.9.1 failing to get SSIDs with WPA supplicant 0.7.3

Hi,
I'm running NetworkManager 0.9.1 from git and wpa_supplicant 0.7.3 on a custom distro (based from poky). When I run nmcli dev wifi, the access points appear but everything seems to be screwed up.
SSID BSSID MODE FREQ RATE SIGNAL SECURITY ACTIVE 8C03000100 02:FE:F4:50:A9:50 Infrastructure 2 MHz 63 MB/s 75 WPA2 no 8C06000100 00:FE:F4:50:A9:50 Infrastructure 2 MHz 1 MB/s 75 -- no 8C06000100 00:FE:F4:59:01:A0 Infrastructure 2 MHz 0 MB/s 20 -- no 8C03000100 02:FE:F4:50:A9:50 Infrastructure 2 MHz 0 MB/s 72 -- no
The driver appears to be working, iwlist gives all the details I expect and comparing the output below with the NM output shows what is wrong. 

iwlist tiwlan0 scanning
tiwlan0   Scan completed :
          Cell 01 - Address: 12:FE:F4:50:A9:50
                    ESSID:"BTFON"
                    Protocol:IEEE 802.11 BG
                    Mode:Managed
                    Frequency:2.462 MHz
                    Signal level=-56 dBm
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s; 6.5 Mb/s; 13 Mb/s; 19.5 Mb/s 26 Mb/s; 39 Mb/s; 52 Mb/s; 58.5 Mb/s; 65 Mb/s 
                    Extra:Bcn int = 100 ms
                    IE: Unknown: 00054254464F4E
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 03010B
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
IE: Unknown: 2D1AAC011BFFFF000000000000000000000000000000000 
000000000
IE: Unknown: 3D160B08000000000000000000000000000000000000000 
0
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0101
IE: Unknown: DD180050F2020101890003A4000027A4000042435E00623 
22F00
IE: Unknown: DD1E00904C33AC011BFFFF0000000000000000000000000 
00000000000000000
IE: Unknown: DD1A00904C340B080000000000000000000000000000000 
000000000
                    IE: Unknown: DD0900037F01010000FF7F
          Cell 02 - Address: 02:FE:F4:50:A9:50
                    ESSID:"BTOpenzone"
                    Protocol:IEEE 802.11 BG
                    Mode:Managed
                    Frequency:2.462 MHz
                    Signal level=-56 dBm
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s; 6.5 Mb/s; 13 Mb/s; 19.5 Mb/s 26 Mb/s; 39 Mb/s; 52 Mb/s; 58.5 Mb/s; 65 Mb/s 
                    Extra:Bcn int = 100 ms
                    IE: Unknown: 000A42544F70656E7A6F6E65
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 03010B
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
IE: Unknown: 2D1AAC011BFFFF000000000000000000000000000000000 
000000000
IE: Unknown: 3D160B08000000000000000000000000000000000000000 
0
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0101
IE: Unknown: DD180050F2020101890003A4000027A4000042435E00623 
22F00
IE: Unknown: DD1E00904C33AC011BFFFF0000000000000000000000000 
00000000000000000
IE: Unknown: DD1A00904C340B080000000000000000000000000000000 
000000000
                    IE: Unknown: DD0900037F01010000FF7F
          Cell 03 - Address: 00:FE:F4:59:01:A0
                    ESSID:"BTHub3-JJCH"
                    Protocol:IEEE 802.11 BG
                    Mode:Managed
                    Frequency:2.437 MHz
                    Signal level=-88 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s; 6.5 Mb/s; 13 Mb/s; 19.5 Mb/s 26 Mb/s; 39 Mb/s; 52 Mb/s; 58.5 Mb/s; 65 Mb/s 
                    Extra:Bcn int = 100 ms
                    IE: Unknown: 000B4254487562332D4A4A4348
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030106
                    IE: Unknown: 050402030000
                    IE: Unknown: 2A0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32043048606C
IE: Unknown: 2D1AAC011BFFFF000000000000000000000000000000000 
000000000
IE: Unknown: 3D160608000000000000000000000000000000000000000 
0
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0101
IE: Unknown: DD180050F2020101870003A4000027A4000042435E00623 
22F00
IE: Unknown: DD1E00904C33AC011BFFFF0000000000000000000000000 
00000000000000000
IE: Unknown: DD1A00904C3406080000000000000000000000000000000 
000000000
IE: Unknown: DD2C0050F204104A0001101044000102105700010010470 
010565AA94967C14C0EAA8FF349E6F59311103C000101
          Cell 04 - Address: 00:FE:F4:50:A9:50
                    ESSID:"BTHub3-3M94"
                    Protocol:IEEE 802.11 BG
                    Mode:Managed
                    Frequency:2.462 MHz
                    Signal level=-55 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s; 6.5 Mb/s; 13 Mb/s; 19.5 Mb/s 26 Mb/s; 39 Mb/s; 52 Mb/s; 58.5 Mb/s; 65 Mb/s 
                    Extra:Bcn int = 100 ms
                    IE: Unknown: 000B4254487562332D334D3934
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 03010B
                    IE: Unknown: 050402030000
                    IE: Unknown: 2A0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32043048606C
IE: Unknown: 2D1AAC011BFFFF000000000000000000000000000000000 
000000000
IE: Unknown: 3D160B08000000000000000000000000000000000000000 
0
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0101
IE: Unknown: DD180050F2020101890003A4000027A4000042435E00623 
22F00
IE: Unknown: DD1E00904C33AC011BFFFF0000000000000000000000000 
00000000000000000
IE: Unknown: DD1A00904C340B080000000000000000000000000000000 
000000000
IE: Unknown: DD2C0050F204104A0001101044000102105700010010470 
010565AA94967C14C0EAA8FF349E6F59311103C000101
Does anyone have any ideas on how to debug this further? I've added some debugging to wpa_supplicant to print out the SSIDs that it knows about as they appear in the scans and it appears that its getting them wrong as well, either they just contain garbage or they are empty, but as for what to look further at, I'm somewhat at a loss. 

iain
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