Web: let the user know the dispute is on last round...

[kemuru]

...and appeal is not possible anymore. Instead of showing these large numbers on the Appeal tab, we should think of something else

[jaybuidl]

This is by design an impossible value to prevent further appeals.

kleros-v2/contracts/src/arbitration/KlerosCore.sol

Lines 935 to 939 in 14dff15

	if (round.nbVotes >= court.jurorsForCourtJump) {
	// Jump to parent court.
	if (dispute.courtID == GENERAL_COURT) {
	// TODO: Handle the forking when appealed in General court.
	cost = NON_PAYABLE_AMOUNT; // Get the cost of the parent court.

kleros-v2/contracts/src/arbitration/KlerosCore.sol

Line 109 in 14dff15

uint256 public constant NON_PAYABLE_AMOUNT = (2 ** 256 - 2) / 2; // An amount higher than the supply of ETH.

(2 ** 256 - 2) / 2 = 5.78960446186581e+76

[jaybuidl]

Solution

This is a temporary solution until the forking court is implemented. It is unlikely to happen in mainnet conditions (arbitrum one), but quite likely on a testnet.

If the appealCost() returns anything >= (2 ** 154)/2, then disable the appeal tab with a message: "This dispute cannot be appealed any further."

[kemuru]

fixed on PR #1184