Thread 'IO Worker #1' panicked at 'nonce will return Some when given BlockId::Latest.

[atlanticcrypto]

I'm running:

• Which Parity version?: 1.11.3 / 1.8.12
• Which operating system?: Ubuntu 16.04
• How installed?: via installer and source
• Are you fully synchronized?: yes
• Which network are you connected to?: ethereum
• Did you try to restart the node?: yes

1.11.3 hit open file limits (even after pushing them to 500,000, it just took longer).

restart the node server - this is what i get - needed to kill the entire db to get the node to start - now re-syncing.

2018-06-14 08:23:32   WARN ethcore::block  Encountered error on closing the block: Database missing expected key: 0x79f2…0272
2018-06-14 08:23:32  fetch WARN rustls::session  Sending warning alert CloseNotify
2018-06-14 08:23:32   INFO miner  Updated conversion rate to Ξ1 = US$485.11 (9816134 wei/gas)
2018-06-14 08:23:37  IO Worker #1 INFO network  Public node URL: xxxxxxxxxxxxxxxxxxxx
2018-06-14 08:23:38  IO Worker #0 WARN ethcore::block  Encountered error on closing the block: Database missing expected key: 0x79f2…0272
====================
stack backtrace:
   0:     0x55e62ae5a1fc - <no info>
Thread 'IO Worker #1' panicked at 'nonce will return Some when given BlockId::Latest. nonce was given BlockId::Latest. Therefore nonce has returned Some; qed', libcore/option.rs:916
This is a bug. Please report it at:
    https://github.com/paritytech/parity/issues/new

[Tbaut]

Related to #8813 and duplicates #5968 I'll close in favor of #8813