v6.14.0+ breakes existing model types

[snitin315]

Issue Creation Checklist

[ ] I have read the contribution guidelines

Bug Description

SSCCE

**Here is the link to the SSCCE for this issue: opencollective/opencollective-api#7142

// You can delete this code block if you have included a link to your SSCCE above!
import { PaypalProductCreateAttributes } from './PaypalProduct';

interface PaypalPlanAttributes {
  id: string;
  ProductId: string;
  currency: string;
  interval: string;
  amount: number;
  createdAt: Date;
  updatedAt: Date;
  deletedAt: Date;
}

interface PaypalPlanCommonCreateAttributes {
  id: string;
  currency: string;
  interval: string;
  amount: number;
}

interface PaypalPlanCreateWithProductIdAttributes extends PaypalPlanCommonCreateAttributes {
  ProductId?: string;
}

interface PaypalPlanCreateWithProductAttributes extends PaypalPlanCommonCreateAttributes {
  product?: PaypalProductCreateAttributes;
}

type PaypalPlanCreateAttributes = PaypalPlanCreateWithProductIdAttributes | PaypalPlanCreateWithProductAttributes;


class PaypalPlan extends Model<PaypalPlanAttributes, PaypalPlanCreateAttributes> implements PaypalPlanAttributes {
  id: string;
  ProductId: string;
  currency: string;
  interval: string;
  amount: number;
  createdAt: Date;
  updatedAt: Date;
  deletedAt: Date;
  constructor(...args) {
    super(...args);
    restoreSequelizeAttributesOnClass(new.target, this);
  }
}

What do you expect to happen?

No typescript errors for v6.13.0 and before.

What is actually happening?

Additional context

Using intersection instead of union is fixing it, but we do not want an intersection here.

- type PaypalPlanCreateAttributes = PaypalPlanCreateWithProductIdAttributes | PaypalPlanCreateWithProductAttributes;
+ type PaypalPlanCreateAttributes = PaypalPlanCreateWithProductIdAttributes & PaypalPlanCreateWithProductAttributes;

Environment

• Sequelize version: XXX
• Node.js version: XXX
• If TypeScript related: TypeScript version: XXX

Bug Report Checklist

How does this problem relate to dialects?

• I think this problem happens regardless of the dialect.
• I think this problem happens only for the following dialect(s):
• I don't know, I was using PUT-YOUR-DIALECT-HERE, with connector library version XXX and database version XXX

Would you be willing to resolve this issue by submitting a Pull Request?

• Yes, I have the time and I know how to start.
• Yes, I have the time but I don't know how to start, I would need guidance.
• No, I don't have the time, although I believe I could do it if I had the time...
• No, I don't have the time and I wouldn't even know how to start.

[snitin315]

Fixed in #14146

[ephys]

Happy to hear it worked 🎉 (also surprised github didn't link the issue to the PR)