dont calculate TransferableBalance when balance is 0

pendulum-chain / portal

The Pendulum/Amplitude portal UI

https://portal.pendulumchain.org/

GNU General Public License v3.0

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dont calculate TransferableBalance when balance is 0 #614

Closed Sharqiewicz closed 3 weeks ago

Sharqiewicz commented 3 weeks ago

🦈 PR 🟢

Issue description

After recent changes, we encountered an issue where accounts with a zero balance resulted in a negative transferable balance, specifically -0.00 (See image in the #609).

The cause

For accounts with a free balance of 0, calculateTransferableBalance can produce a negative value (specifically -0.001) because the EXISTENTIAL_DEPOSIT is set to 0.001, causing a deduction even when the free balance is zero.

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