Update the EF Core entity configurations to generate primary keys on add

src/OpenIddict.EntityFrameworkCore/Configurations/OpenIddictApplicationConfiguration.cs

@@ -54,6 +54,9 @@ namespace OpenIddict.EntityFrameworkCore
                    .HasMaxLength(50)
                    .IsConcurrencyToken();
 
+            builder.Property(application => application.Id)
+                   .ValueGeneratedOnAdd();
+
             builder.Property(application => application.Type)
                    .HasMaxLength(25)
                    .IsRequired();

src/OpenIddict.EntityFrameworkCore/Configurations/OpenIddictAuthorizationConfiguration.cs

@@ -50,6 +50,9 @@ namespace OpenIddict.EntityFrameworkCore
                    .HasMaxLength(50)
                    .IsConcurrencyToken();
 
+            builder.Property(authorization => authorization.Id)
+                   .ValueGeneratedOnAdd();
+
             builder.Property(authorization => authorization.Status)
                    .HasMaxLength(25)
                    .IsRequired();

src/OpenIddict.EntityFrameworkCore/Configurations/OpenIddictScopeConfiguration.cs

@@ -46,6 +46,9 @@ namespace OpenIddict.EntityFrameworkCore
                    .HasMaxLength(50)
                    .IsConcurrencyToken();
 
+            builder.Property(scope => scope.Id)
+                   .ValueGeneratedOnAdd();
+
             builder.Property(scope => scope.Name)
                    .HasMaxLength(200)
                    .IsRequired();

src/OpenIddict.EntityFrameworkCore/Configurations/OpenIddictTokenConfiguration.cs

@@ -56,6 +56,9 @@ namespace OpenIddict.EntityFrameworkCore
                    .HasMaxLength(50)
                    .IsConcurrencyToken();
 
+            builder.Property(token => token.Id)
+                   .ValueGeneratedOnAdd();
+
             builder.Property(token => token.ReferenceId)
                    .HasMaxLength(100);