EF Core throws `DbUpdateException - duplicate primary key` on an empty table

                <StackPanel Grid.Row="0" Grid.Column="2">
                    <TextBox Watermark="From" Text="{Binding NewTransferForm.From}"/>
                    <TextBox Watermark="To" Text="{Binding NewTransferForm.To}"/>
                    <Button Grid.Row="0" Grid.Column="2"
                            Content="Create New Transfer Form"
                            Command="{Binding AddNewTransferFormCommand}"/>
                </StackPanel>