Bug: blank options shown for timezone when adding filter on collection view

Describe the Bug

When adding a filter on the collection view, I am seeing blank options - which I assume to be the timezone from the date field.

While this is a guess, I am fairly certain since after I select the blank option, time zones are shown as filter options

Here is part of the collection config. There are no fields defined between startDate and endDate which further suggests the blank option is the timezone

export const startAndEndDateField = (): RowField => ({
  type: 'row',
  fields: [
    {
      name: 'startDate',
      type: 'date',
      timezone: {
        supportedTimezones: TIMEZONE_OPTIONS,
      },
      required: true,
      admin: {
        date: {
          pickerAppearance: 'dayAndTime',
        },
        width: '50%',
      },
    },
    {
      name: 'endDate',
      type: 'date',
      timezone: {
        supportedTimezones: TIMEZONE_OPTIONS,
        required: true,
      },
      admin: {
        date: {
          pickerAppearance: 'dayAndTime',
        },
        description:
          'Optional end date for multi-day events. Timezone will always be set to the startDate timezone.',
        width: '50%',
      },
...

Link to the code that reproduces this issue

https://github.com/NWACus/web/blob/main/src/fields/startAndEndDateField/index.ts

Reproduction Steps

1. Navigate to collection with date field
2. Select Filters
3. Select first dropdown and see blank options
4. (Optional) select blank option and see timezones in 3rd dropdown

Which area(s) are affected?

area: ui

Environment Info

Binaries:
  Node: 22.14.0
  npm: 10.9.2
  Yarn: 1.22.10
  pnpm: 10.6.4
Relevant Packages:
  payload: 3.66.0
  next: 15.5.7
  @payloadcms/db-sqlite: 3.66.0
  @payloadcms/drizzle: 3.66.0
  @payloadcms/email-nodemailer: 3.66.0
  @payloadcms/email-resend: 3.66.0
  @payloadcms/graphql: 3.66.0
  @payloadcms/live-preview: 3.66.0
  @payloadcms/live-preview-react: 3.66.0
  @payloadcms/next/utilities: 3.66.0
  @payloadcms/plugin-cloud-storage: 3.66.0
  @payloadcms/plugin-form-builder: 3.66.0
  @payloadcms/plugin-seo: 3.66.0
  @payloadcms/richtext-lexical: 3.66.0
  @payloadcms/storage-vercel-blob: 3.66.0
  @payloadcms/translations: 3.66.0
  @payloadcms/ui/shared: 3.66.0
  react: 19.1.0
  react-dom: 19.1.0