Yes. R81 was preinstalled. I've uploaded the latest Blink Image R82 T12 and right-clicked it as clean install.
The secondary management is now in a red state in SmartConsole and I see CPD packets:
11:15:22.110813 IP 192.168.1.75.49403 > 192.168.1.76.18192: Flags [S], seq 661197577, win 29200, options [mss 1460,sackOK,TS val 723357739 ecr 0,nop,wscale 10], length 0
11:15:22.110831 IP 192.168.1.76.18192 > 192.168.1.75.49403: Flags [S.], seq 3035952362, ack 661197578, win 28960, options [mss 1460,sackOK,TS val 3767154673 ecr 723357739,nop,wscale 10], length 0
11:15:22.110907 IP 192.168.1.75.49403 > 192.168.1.76.18192: Flags [.], ack 1, win 29, options [nop,nop,TS val 723357739 ecr 3767154673], length 0
11:15:22.110917 IP 192.168.1.75.49403 > 192.168.1.76.18192: Flags [P.], seq 1:5, ack 1, win 29, options [nop,nop,TS val 723357739 ecr 3767154673], length 4
11:15:22.110920 IP 192.168.1.76.18192 > 192.168.1.75.49403: Flags [.], ack 5, win 29, options [nop,nop,TS val 3767154674 ecr 723357739], length 0
11:15:22.110963 IP 192.168.1.76.18192 > 192.168.1.75.49403: Flags [P.], seq 1:5, ack 5, win 29, options [nop,nop,TS val 3767154674 ecr 723357739], length 4
11:15:22.111004 IP 192.168.1.75.49403 > 192.168.1.76.18192: Flags [P.], seq 5:9, ack 1, win 29, options [nop,nop,TS val 723357739 ecr 3767154674], length 4