possible issue with persistent storage

[gangov]

the fn get_vesting listed below fails with the following error:

3: [Failed Diagnostic Event (not emitted)] contract:CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMDR4, topics:[log], data:["cau
ght panic 'called `Result::unwrap()` on an `Err` value: ConversionError' from contract function 'Symbol(obj#217)'", CAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFCT4, CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHK3M, 100]

pub fn save_vesting(env: &Env, address: &Address, vesting_info: VestingInfo) {
    env.storage().persistent().set(address, &vesting_info);
}

pub fn get_vesting(env: &Env, address: &Address) -> Result<VestingInfo, ContractError> {
    let vesting_info = env.storage().persistent().get(address).unwrap_or_else(|| {
        log!(&env, "Vesting: Get vesting schedule: Critical error - No vesting schedule found for the given address");
        panic_with_error!(env, ContractError::VestingNotFoundForAddress);
    });

    Ok(vesting_info)
}

however, when using instance() storage in feature branch of vesting contract we can access the stored value.

[gangov]

note to self: check the result of writing two times to persistent storage with the same key but storing different values

[gangov]

issue is no longer present