MPS timeout when going DOWN while processing

[morxa]

When an MPS goes DOWN while it is processing, it times out after it is back up. We have seen this at least for the CS:

I 07:32:01.502897 C: Received prepare for C-CS1
I 07:32:01.502921 C: C-CS1 is IDLE, processing prepare
I 07:32:01.502943 C: Prepared C-CS1 (RETRIEVE_CAP)
I 07:32:01.503063 C: Machine C-CS1 prepared for RETRIEVE_CAP
I 07:32:02.582809 C: Received prepare for C-CS1
I 07:32:03.063492 C: Machine C-CS1 retrieving a cap
I 07:32:20.583073 C: Machine C-CS1: move to output
I 07:32:20.583471 C: Giving 2 points to team CYAN: Retrieved cap at C-CS1 (PRODUCTION @ 567.519947000001)
I 07:32:23.062977 C: Machine C-CS1 down for 51 sec
I 07:33:14.102981 C: Machine C-CS1 is up again
E 07:34:24.063241 C: Machine C-CS1 timed out while processing
I 07:34:24.063488 MPS: Resetting machine C-CS1
I 07:34:24.063580 C: Machine C-CS1 broken: MPS C-CS1 timed out while processing
I 07:34:24.063811 MPS: Resetting machine C-CS1
I 07:34:24.063883 C: Giving -2 points to team CYAN: Deducting retrieved cap at C-CS1 (PRODUCTION @ 691.000110999995) 

See also the attached full logs:
clips.log
refbox.log

This is related to #6, but not exactly a duplicate.