#602 only auto reset units that should be

supervisor/facility_update.lua

@@ -642,13 +642,14 @@ function update.auto_safety()
             self.ascram_reason = AUTO_SCRAM.NONE
 
             -- reset PLC RPS trips if we should
-            for i = 1, #self.units do
-                local u = self.units[i]
+            for i = 1, #self.prio_defs do
+                for _, u in pairs(self.prio_defs[i]) do
                     u.auto_cond_rps_reset()
                 end
             end
         end
     end
+end
 
 -- update last mode, set next mode, and update saved state as needed
 function update.post_auto()