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Resolved a rendering malfunction that occurred when updating components or children arrays.
If multiple changes with the same identifier were present, an object could be processed multiple times, leading to incorrect rendering.

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Summary of Changes

Hello @MinCrohn, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a critical rendering malfunction where updating arrays of components or children could lead to duplicate elements being processed, resulting in incorrect display. The changes introduce a more robust mechanism for identifying and merging array elements, ensuring each item is handled uniquely and preventing unintended rendering artifacts.

Highlights

  • Rendering Fix: Implemented a mechanism within the Childrenable and Componentsable mixins to prevent duplicate processing of array elements (children/components) during updates. This specifically addresses scenarios where multiple changes with the same identifier could lead to an object being processed multiple times, causing incorrect rendering.
  • Array Merging Logic Enhancement: Enhanced the findIndexByPriority utility to accept and utilize a usedIndexes set, ensuring that already processed elements are not re-matched. Additionally, the deepmerge utility's array merging logic was updated to correctly track and add new elements, preventing unintended overwrites or duplicates.
  • Test Coverage: Added new comprehensive test cases in patchmap.test.js and deepmerge.test.js to validate the fix for duplicate rendering issues and ensure robust array merging behavior, including scenarios involving new elements and the handling of null values within arrays.
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Code Review

This pull request fixes a duplicate rendering error when updating arrays of components or children. The changes introduce a mechanism to track used elements to prevent them from being processed multiple times. The core logic introduced in Childrenable.js and Componentsable.js is flawed and has been addressed in the review comments.

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Code Review

This pull request aims to fix a duplicate rendering issue when updating arrays. The changes in deepmerge.js and findIndexByPriority.js appear correct and are well-supported by new test cases.

However, I've found a critical issue in the similar changes applied to Childrenable.js and Componentsable.js. The logic for tracking used elements is flawed, as it confuses indices from two different arrays. This will lead to incorrect behavior. I've provided detailed comments and suggestions to fix this in the respective files. Please address these critical issues.

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/gemini review

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Code Review

This pull request fixes a duplicate rendering issue when updating arrays. A critical logical error was found in Childrenable.js that would prevent the fix from working for children updates, and has been addressed in the review comments. Additionally, there are a couple of medium-severity comments to improve test maintainability and code clarity.

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/gemini review

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Code Review

This pull request resolves a rendering bug related to duplicate identifiers in array updates. The core logic change, which involves tracking used indices to prevent multiple processing of the same object, is sound and well-implemented. The accompanying test cases confirm the fix. A suggestion has been made to refactor duplicated code in Childrenable.js and Componentsable.js to improve maintainability.

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/gemini review

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Code Review

This pull request resolves a rendering bug related to array updates with duplicate identifiers. The core of the fix involves extracting duplicated logic into a new validateAndPrepareChanges utility function, which correctly tracks used elements to differentiate between updates and new element creations. This refactoring significantly improves code maintainability. The changes also include robustness improvements to deepmerge and findIndexByPriority, and are well-supported by new, specific tests. My feedback is focused on improving the new utility's design for better predictability and enhancing the new test case's completeness.

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/gemini review

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Code Review

This pull request resolves a bug with duplicate rendering during array updates. The core fix in deepmerge.js and the new validateAndPrepareChanges utility are well-implemented, and the refactoring in Childrenable.js and Componentsable.js to use this new utility reduces code duplication.

@MinCrohn MinCrohn merged commit bbc19a1 into v0.3.x Jul 18, 2025
@MinCrohn MinCrohn deleted the bugfix/error-render branch July 18, 2025 02:44
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