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pezkuwi-subxt/prdoc/pr_3865.prdoc
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Oliver Tale-Yazdi e8f7c81db6 [balances] Safeguard against consumer ref underflow (#3865)
There are some accounts that do not have a consumer ref while having a
reserve.
This adds a fail-safe mechanism to trigger in the case that
`does_consume` is true, but the assumption of `consumer>0` is not.

This should prevent those accounts from loosing balance and the TI from
getting messed up even more, but is not an "ideal" fix. TBH an ideal fix
is not possible, since on-chain data is in an invalid state.

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Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
2024-04-26 08:16:03 +00:00

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title: "Balances: add failsafe for consumer ref underflow"
doc:
- audience: Runtime Dev
description: |
Pallet balances now handles the case that historic accounts violate a invariant that they should have a consumer ref on `reserved > 0` balance.
This disallows such accounts from reaping and should prevent TI from getting messed up even more.
crates:
- name: pallet-balances
bump: patch