estimate gas failing without error on registerToken

[johannbarbie]

await exitHandlerProxy.applyProposal(data, { from: admin, gas: estimate });
log('registered token: ', nativeToken.address);
const tokenAddress = await vault.getTokenAddr(0);
console.log('read Token: ', tokenAddress);

gives:

registered token:  0x33f8feE54f2874f1793280BBBd81E29A5b4303Fa
read Token:  0x0000000000000000000000000000000000000000

while:

await exitHandlerProxy.applyProposal(data, { from: admin, gas: estimate * 2 });
log('registered token: ', nativeToken.address);
const tokenAddress = await vault.getTokenAddr(0);
console.log('read Token: ', tokenAddress);

gives:

registered token:  0x33f8feE54f2874f1793280BBBd81E29A5b4303Fa
read Token:  0x33f8feE54f2874f1793280BBBd81E29A5b4303Fa