Daily code review challenge

A new snippet every day, one per stack. Find the bug, or prove there isn't one.

Android

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iOS

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Spring Boot

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React / Next.js

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Node.js / NestJS

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Angular

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Vue.js / Nuxt.js

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.NET

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Data Science & ML

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Data Analytics

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Data Engineering

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DevOps

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Laravel

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Go

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Django

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React Native

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Flutter

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Rust

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Ruby on Rails

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Symfony

Today's challenge