(produce_sect, finish_sects): Move stop order expiry to end of update,

so that stopped sectors don't repair units.  The update sequence
masked this bug until its change in src/lib/update/main.c rev. 1.25,
but use of budget priorities (gone since rev. 1.24) could unmask it.

src/lib/update/finish.c

@@ -162,6 +162,8 @@ finish_sects(int etu)
 	if (infptr->path)
 	    free(infptr->path);
 #endif /* SAVE_FINISH_PATHS */
+
+	sp->sct_off = 0;
     }
     logerror("done importing\n");