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angular__angular/packages/forms
arturovt f43bad4d7b perf(forms): avoid spurious recomputation in FormField.parseErrors
`parseErrors` in `FormField` always produced a new array on every recomputation, even when nothing actually changed. The `?? []` fallback created a new empty array whenever `parseErrorsSource` was undefined, and `.map()` also returned new object references each time.

Since computed signals use reference equality by default, those new arrays were treated as changed values. That caused unnecessary updates to propagate through `validationState.parseErrors` and the combined errors chain, triggering extra recomputations during change detection.

Fix this by adding `{equal: shallowArrayEquals}` to the `parseErrors` computed, matching the existing `errors` computed and the validation computeds in `field/validation.ts`.

This prevents empty arrays from triggering updates while still correctly propagating real parse-error changes.
2026-05-18 13:08:33 -07:00
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2026-04-23 11:38:26 -07:00
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