fix crash in head manager

PadelClub.xcodeproj/project.pbxproj

@@ -3245,7 +3245,7 @@
 				CODE_SIGN_ENTITLEMENTS = PadelClub/PadelClub.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_ASSET_PATHS = "\"PadelClub/Preview Content\"";
@@ -3293,7 +3293,7 @@
 				CODE_SIGN_ENTITLEMENTS = PadelClub/PadelClub.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_ASSET_PATHS = "\"PadelClub/Preview Content\"";
 				DEVELOPMENT_TEAM = BQ3Y44M3Q6;

PadelClub/Views/Tournament/Screen/Components/HeadManagerView.swift

@@ -58,7 +58,11 @@ struct HeadManagerView: View {
                 startingRound -= 1
             }
             
-            teamsPerRound = Array(repeating: 0, count: startingRound)
+            if startingRound > 0 {
+                teamsPerRound = Array(repeating: 0, count: startingRound)
+            } else {
+                teamsPerRound = []
+            }
         }
         while leftToPlace(heads: heads, teamsPerRound: teamsPerRound) > 0 {
             // maxAssignable: On retire toutes les équipes placées dans les tours précédents, pondérées par leur propagation (puissance du tour)