Merge pull request #11539 from vegaprotocol/fix_spot_spam_bug

fix: order spam check for spot fixed

Author: jeremyletang

CHANGELOG.md

@@ -20,11 +20,11 @@
 - [11528](https://github.com/vegaprotocol/vega/issues/11528) - Added support for eligible entities reward. 
 - [11372](https://github.com/vegaprotocol/vega/issues/11372) - Support combined filters for the `AMM` API.
 - [11535](https://github.com/vegaprotocol/vega/issues/11535) - Added support for lottery rank distribution strategy.
-### 🐛 Fixes
 
+### 🐛 Fixes
 - [11521](https://github.com/vegaprotocol/vega/issues/11521) - Restore `AMM` position factor when loading from a snapshot.
 - [11526](https://github.com/vegaprotocol/vega/issues/11526) - `EstimateAMMBounds` now respects the market's decimal places.
-
+- [11540](https://github.com/vegaprotocol/vega/issues/11540) - Fix spam check for spots to use not double count quantum.
 
 ## 0.77.5
 

core/execution/spot/market.go

@@ -3349,10 +3349,9 @@ func (m *Market) checkOrderForSpam(side types.Side, orderPrice *num.Uint, orderS
 		price, _ = num.UintFromDecimal(orderPrice.ToDecimal().Mul(m.priceFactor))
 	}
 
-	minQuantum := assetQuantum.Mul(quantumMultiplier)
 	value := num.UintZero().Mul(num.NewUint(orderSize), price).ToDecimal()
 	value = value.Div(m.positionFactor)
-	required := minQuantum.Mul(assetQuantum)
+	required := assetQuantum.Mul(quantumMultiplier)
 	if value.LessThan(required) {
 		return fmt.Errorf(fmt.Sprintf("order value (%s) is less than minimum holding requirement for spam (%s)", value.String(), required.String()))
 	}