Clearing "Widget type" field produces a ValueError: Unregistered widget class:

[bctiemann]

Deployment Type

Self-hosted

NetBox Version

v4.2.5

Python Version

3.10

Steps to Reproduce

1. On the Dashboard, unlock and click "Add Widget"
2. On the popup dialog, click the X to clear the "Widget type" field (or backspace over the preselected value)
3. App crashes with the below observed error

Expected Behavior

App should not crash; form should not trigger any dynamic parsing that tries to validate an empty input value

Observed Behavior

ValueError at /extras/dashboard/widgets/add/
Unregistered widget class:
Request URL: http://127.0.0.1:8000/extras/dashboard/widgets/add/?widget_class=