Make the lock command force-update Exits to handle cmd-type locks without a reload; as per #1142.

evennia/commands/default/building.py

@@ -1820,6 +1820,11 @@ class CmdLock(ObjManipCommand):
                 ok = obj.locks.add(lockdef)
             except LockException as e:
                 caller.msg(str(e))
+            if "cmd" in lockdef.lower() and \
+                    inherits_from(obj, "evennia.objects.objects.DefaultExit"):
+                # special fix to update Exits since "cmd"-type locks won't
+                # update on them unless their cmdsets are rebuilt.
+                obj.at_init()
             if ok:
                 caller.msg("Added lock '%s' to %s." % (lockdef, obj))
             return