fix: Korrektur der Update- und Löschlogik in DbRepository zur Vermeidung von Laufzeitproblemen

DigitalData.Core.Infrastructure/DbRepository.cs

@@ -42,10 +42,10 @@ public class DbRepository<TDbContext, TEntity> : IRepository<TEntity> where TDbC
     {
         var entities = await Entities.Where(expression).ToListAsync(ct);
 
-        foreach (var entity in entities)
+        for (int i = entities.Count - 1; i >= 0; i--)
         {
-            Mapper.Map(dto, entity);
-            Entities.Add(entity);
+            Mapper.Map(dto, entities[i]);
+            Entities.Update(entities[i]);
         }
 
         await Context.SaveChangesAsync(ct);
@@ -55,9 +55,9 @@ public class DbRepository<TDbContext, TEntity> : IRepository<TEntity> where TDbC
     {
         var entities = await Entities.Where(expression).ToListAsync(ct);
 
-        foreach (var entity in entities)
+        for (int i = entities.Count - 1; i >= 0; i--)
         {
-            entities.Remove(entity);
+            Entities.Remove(entities[i]);
         }
 
         await Context.SaveChangesAsync(ct);