---
id: gk-foundation-merge-tags-collision
title: "Action - gk/foundation/merge-tags/collision"
sidebar_label: "gk/foundation/merge-tags/collision"
---

# Action: gk/foundation/merge-tags/collision

Fires when a schema merge skips a colliding entry, keeping the earlier definition's copy.

## Parameters

| Name | Type | Description |
|------|------|-------------|
| $bucket | `string` | 'tags' or 'modifiers'. |
| $entry | `array` | The entry that was skipped. |
| $product | `string` | The definition that tried to add it. |
| $existing_product | `string` | The definition that already owns the key. |

### Source

Defined in `MergeTags/Registry.php` at line 358