Bugfix/fix buying power calculation with emergency fund tag (#1713)

* Fix buying power calculation

* Update changelog

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Beautified the ETF names in the asset profile
 
+### Fixed
+
+- Fixed the buying power calculation if no emergency fund is set but an activity is tagged as _Emergency Fund_
+
 ## 1.235.0 - 2023-02-16
 
 ### Changed

apps/api/src/app/portfolio/portfolio.service.ts

@@ -1550,7 +1550,10 @@ export class PortfolioService {
       userCurrency
     }).toNumber();
     const emergencyFund = new Big(
+      Math.max(
+        emergencyFundPositionsValueInBaseCurrency,
         (user.Settings?.settings as UserSettings)?.emergencyFund ?? 0
+      )
     );
     const fees = this.getFees({ activities, userCurrency }).toNumber();
     const firstOrderDate = activities[0]?.date;