MidnightBundles.buyWithAssetsTargetAndWithdrawCollateral() documents that the taker
gains at least minUnits. It counts the raw units returned by Midnight.take(), before
the taker’s position is synced against the market’s current lossFactor.
A sell-offer maker can use its own seller callback to liquidate a different bad-debt
borrower in the same market. That liquidation raises lossFactor after the buyer has
been credited but before the bundle returns. The bundle still adds unitsToTake to
filledUnits and passes require(filledUnits >= minUnits).
The taker pays for 100 units, passes minUnits = 100e18, and after updatePosition()
holds about 30.6 units.
Affected: morpho-org/midnight @ 7538c438513622721e23a94676b93a335b83dace