Field type icon in `Where` input isn't accurate

[mhkeller]

Bug Report

Steps to Reproduce:

1. Load this dummy data of student exams: https://gist.github.com/mhkeller/8831f579f814af2a7415e043457d4e56
2. Add the exam_score field to the Where filter

Expected Result:

The icon next to exam_score is a # symbol because it's numeric

Actual Result:

The field type symbol is an A, signifying a text field.

Environment:

2.10.0 loaded from the website: https://perspective.finos.org/block/?example=file

Additional Context:

The filter still works properly