Crash on filter `unique` for pointer

[mtrezza]

New Issue Checklist

• I am not disclosing a vulnerability.
• I am not just asking a question.
• I have searched through existing issues.
• I can reproduce the issue with the latest versions of Parse Server and Parse Dashboard.

Issue Description

Dashboard crashes when setting a filter unique for a field of type Pointer.

Steps to reproduce

1. Open class with Pointer field in data browser.
2. Set filter unique on Pointer field.
3. Dashboard crashes.

Environment

Dashboard

• Parse Dashboard version: 6.0.0-alpha.28

Logs

TypeError: l.get is not a function. (In 'l.get("username")', 'l.get' is undefined)

[parse-github-assistant]

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[RaghavArora14]

Hi can i work on this?

[parseplatformorg]

🎉 This change has been released in version 6.1.1-alpha.1

[parseplatformorg]

🎉 This change has been released in version 6.2.0

[hej2010]

The dashboard still crashes in version 7.5.0 when filtering with unique on a field that points to _User:

Uncaught (in promise) TypeError: l.get is not a function
    at t.value (dashboard.bundle.js:2:3043448)

Line code:

"_User" !== l.className || void 0 === l.get("username") && void 0 === l.get("password") ? "_User" === l.className && void 0 !== l.get("authData") && (U = ["authData"]) : U = ["username", "password"];