intro note: I understand formatting line breaks & indents in a multi-line declaration like class X extends Y implements I1, I2, I3 is a complicated & opinionated problem, especially as the class names grow longer and/or have generic args (inb4 "use prettier" 😅), I'm just reporting a small inconsistency between how extends and implements behaves.

Repro

{
  "rules": {
    "@typescript-eslint/indent": ["error", 4]
  }
}

// ---- example A ----
export class ExA1
implements Iface1 {  // OK, indent 0 is correct
    fn(): void {}
}

export class ExA2
extends Base2 {  // Error: Expected indentation of 4 spaces but found 0.
    fn(): void {}
}

// ---- example B ----
export class ExB1 implements
Iface1 {  // OK, indent 0 is correct
    fn(): void {}
}

export class ExB2 extends
Base2 {  // Error: Expected indentation of 4 spaces but found 0.
    fn(): void {}
}

Expected Result
In the above examples, ... extends X ... and ... implements Y ... with identical line breaks should have identical indentation.

Actual Result
extends and implements require different indent when the class declaration is multi-line.

Versions

(but I don't use npm, only yarn ^)