Text filter over a custom column in simple embedding expects a number

[paoliniluis]

Describe the bug
When there's a text filter on a custom column in signed embedding, it will request for a number instead of a string

Logs
NA, seems like a FE error

To Reproduce

1. enable embedding
2. new->question->people>custom colum-> concat([Email], [Name]), save it with any name
3. add question to dashboard
4. add text filters (text contains, text does not contain, text starts with, text ends with)
5. click to embed it, enable the filters as editable
6. click on the filters to see all requesting a number

Expected behavior
Text filter should expect strings

Screenshots

Information about your Metabase Installation:

• Your browser and the version: Brave latest
• Your operating system: Pop 22.04
• Your databases: Postgres 14
• Metabase version: 1.44.2
• Metabase hosting environment: Docker
• Metabase internal database: Postgres

Severity
P2

Additional context
Workaround: use a view in the DB to build the custom column

[flamber]

Related to #22788