Duplicate class and file names for entities and mapping

[adolfodiaz]

The generator is leaving duplicate class and file names for entities and mapping.

Environment: SQL Server

Step to reproduce:
Create table script:

USE [YOUR_DATABASE]
GO

/****** Object:  Table [dbo].[header]    Script Date: 2020/06/09 11:01:10 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [dbo].[header](
	[id_header] [int] NOT NULL,
 CONSTRAINT [PK_header] PRIMARY KEY CLUSTERED 
(
	[id_header] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO


CREATE TABLE [dbo].[details](
	[id_detail] [INT] NOT NULL,
	[id_header] [INT] NULL,
 CONSTRAINT [PK_details] PRIMARY KEY CLUSTERED 
(
	[id_detail] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO

ALTER TABLE [dbo].[details]  WITH CHECK ADD  CONSTRAINT [FK_details_header] FOREIGN KEY([id_header])
REFERENCES [dbo].[header] ([id_header])
GO

ALTER TABLE [dbo].[details] CHECK CONSTRAINT [FK_details_header]
GO

Execution result before fix

Execution result after fix

For PR purposes i attach generation.yml in txt format

generation.yml.txt