Describe the bug

Native enum migrations contain lower-cased values where they should be kept as specified and the migration accordingly fails.

Reproduction

I am creating migrations for models that contain native PostgreSQL enums.

Sometimes when a value is added - usually for the first value - the migration fails like this:

DriverException: alter type [...] add value if not exists 'NEW_VALUE' before 'old_value'; - "old_value" is not an existing enum label

The enum is actually uppercase for both the new and old values, so the error message is correct. For some reason the migration inserts a lower case value (but often only for the first old item).

export enum Test {
NEW_VALUE = "NEW_VALUE",
OLD_VALUE = "OLD_VALUE",
}

What driver are you using?

None

MikroORM version

6.4

Node.js version

22.0

Operating system

No response

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