Davis means both collateral estoppel and res judicata] as developed in the court system are fully applicable to some administrative proceedings. The reasons against a second litigation between the same parties of the same claims or issues are precisely the same for some administrative determinations as they are for most judicial determinations. The sound view is therefore to use the doctrine of res judicata when the reasons for it are present in full force, to modify it when modification is needed, and to reject it when the reasons against it outweigh those in its favor.” 2 K. Davis, Administrative Law Treatise § 18.02, at 548 (1958). See also Shannon v. Moffett, 43 Or App 723, 604 P2d 407 (1979); Oregon City Fed. of Teachers v. OCEA, 36 Or App 27, 584 P2d 303 (1978) (Tanzer, J.) (<HOLDING>). A prerequisite to the application of the
holding collateral estoppel elements met considering changed circumstances in the context of an exception to the general rule of collateral estoppel holding that collateral estoppel applies to  1983 claims recognizing doctrine recognizing the doctrine of collateral estoppel in agency proceedings recognizing the collateral order doctrine for the first time