Fix an Infinite renderedCallback Loop

Debug an LWC that mutates reactive state every time renderedCallback executes.

Challenge

Version 1

Inspect the evidence

Artifact / implementation

Review the supplied code, configuration or trace before proposing a fix.

import { LightningElement } from 'lwc';

export default class AccountSummary extends LightningElement {
    renderCount = 0;

    renderedCallback() {
        this.renderCount = this.renderCount + 1;
    }
}

Response workspace

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Identify the issue, explain why it is a problem, and describe the fix. Include both your analysis and corrected solution below.

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