fix mergecart bug

[mzaintariq]

Describe your changes

Fixed bug in mergecart function

Issue ticket number and link

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• I have performed a self-review of my code
• If it is a core feature, I have added thorough tests.
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Latest commit: 72642ee

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Project	Deployment	Review	Updated (UTC)
commerce-essentials	Error		Dec 22, 2025 7:47am
composable-frontend-core	Ready	Preview, Comment	Dec 22, 2025 7:47am
composable-frontend-docs	Ready	Preview, Comment	Dec 22, 2025 7:47am
composable-frontend-simple	Error	Comment	Dec 22, 2025 7:47am

1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
composable-frontend-algolia	Ignored		Dec 22, 2025 7:47am