[BUG] Withdraw fails to top‑up via SwapSource (exact‑output path) despite sufficient AutoBalancer balance

[liobrasil]

Problem

Investigating a testnet withdraw failure for FlowYieldVaults (vault 704, position 120): https://testnet.flowscan.io/tx/35355aab185f12a403b49bb2a6277a1209e722dce95229942840ffa7ec8f105c?tab=script

Withdraw from a FlowYieldVault fails with Insufficient funds in withdrawAndPull even though the vault balance and AutoBalancer balance are sufficient and the DEX quoter returns valid non‑zero values. Close succeeds under the same market conditions, so the failure appears isolated to the withdraw top‑up path (exact‑output branch).
Label: FlowYieldVaults / FlowActions (UniswapV3 Swapper on Flow EVM)

Steps to Reproduce

1. Create a yieldVault of 10 Flow.
2. Try to withdraw 7 Flow from this yieldVault.
3. Close the yieldVault.

[liobrasil]

onflow/FlowActions#87 fixed the issue