Equipping minted Name is silently blocked when it matches the current non-unique display name

[decentraland-bot]

Build version

Not specified

Issue Description

When a user has a non-unique display name set to a value (e.g. "test2000") and then mints a Name NFT with the exact same string, they are unable to equip that minted Name to their avatar. No error message or feedback is shown — the equip action simply does nothing. The workaround is to first change the non-unique name to something else, and then equip the minted Name.

This is particularly confusing for users who set their non-unique name early on and later mint a Name matching it, since they have no way of knowing why the equip is failing.

STR (Steps to Reproduce)

1. Unequip any currently equipped Name from your avatar
2. Set non-unique display name to e.g. "test2000"
3. Mint a Name NFT with the same value "test2000"
4. Open the backpack and try to equip the newly minted Name

Expected Result

The minted Name "test2000" should be equipped to the avatar successfully, replacing the non-unique display name.

Actual Result with evidence

The equip action has no effect and no error or feedback is shown. The minted Name cannot be equipped unless the non-unique display name is first changed to a different value.

Reproduction

Always (100%)

Operative system and additional Notes

Windows

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Reported by a user (via Dawid Krajewski)
Requested by Dawid Krajewski (<@U079GRD9WTZ>)

[github-actions]

Automated Triage

Issue type	bug
Affected area	Avatar & Identity → Names equipping
Feature category	Primary
Severity	SEV-2 → 1-high

Reasoning: This is a Primary category feature (Names/Avatar identity per issue-triage-categories.md). Users cannot equip minted Names when they match their current non-unique display name. The equip action fails silently with no feedback. While a workaround exists (change the non-unique name first), the core equipping functionality is broken for affected users, meeting SEV-2 criteria: "A Primary category feature broken for some users. Platform still partially works."

Labels applied: bug, 1-high, user-issue, need QA validation, Windows Only

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Auto-triaged. If labels are incorrect, update issue triage categories or severity policy and re-run triage.