[RUNTIME] Cryoing out as a Cyborg throws runtime persistence error

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:515.1623
Key:dexee

Round ID:

3249

Testmerges:

• Behold, a Box!
• Contractors
• Wiremod Chemistry + Minor Fixes
• More pathology stuff
• More Maps and Map Related Stuff

Reproduction:

[06:41:51] Runtime in monkestation/code/modules/cryopods/_cryopod.dm, line 231: undefined proc or verb /mob/living/silicon/robot/save individual persistence().
proc name: close machine (/obj/machinery/cryopod/close_machine)
usr: UncannyAss/(Default Cyborg-816)
usr.loc: (Morgue Maintenance (160,62,2))
src: the cryogenic freezer (/obj/machinery/cryopod)
src.loc: the floor (160,62,2) (/turf/open/floor/iron/freezer)
call stack:
the cryogenic freezer (/obj/machinery/cryopod): close machine(Default Cyborg-816 (/mob/living/silicon/robot), 1)
the cryogenic freezer (/obj/machinery/cryopod): MouseDrop T(Default Cyborg-816 (/mob/living/silicon/robot), Default Cyborg-816 (/mob/living/silicon/robot), "icon-x=15;icon-y=23;left=1;but...")
Default Cyborg-816 (/mob/living/silicon/robot): MouseDrop(the cryogenic freezer (/obj/machinery/cryopod), the floor (160,61,2) (/turf/open/floor/iron/freezer), the floor (160,62,2) (/turf/open/floor/iron/freezer), "mapwindow.map", "mapwindow.map", "icon-x=15;icon-y=23;left=1;but...")
Default Cyborg-816 (/mob/living/silicon/robot): MouseDrop(the cryogenic freezer (/obj/machinery/cryopod), the floor (160,61,2) (/turf/open/floor/iron/freezer), the floor (160,62,2) (/turf/open/floor/iron/freezer), "mapwindow.map", "mapwindow.map", "icon-x=15;icon-y=23;left=1;but...")