Life In 19x19

Sometimes, after a game ends, the two players can't agree on which stones are dead or alive. Many rulesets have some allowances for the game to resume to help resolve such disputes. There's a couple of choices to make when writing such rules; for example: who plays first? may the first player retake ...

Are there any rulesets which distinguish between a declaration that the game is over and a move which places no stones (that is, has two different kinds of pass)? It seems like this would solve a lot of weird game resumption rules, since we can allow the second "game-is-over pass" player to resume ...