UITextField incorrectly resizes it's font

Number:rdar://37783463 Date Originated:22-Feb-2018 01:49 PM
Status:Open Resolved:
Product:iOS + SDK Product Version:11.2
Classification:Serious Bug Reproducible:Always
When a UITextField doesn't have required “equalTo” leading and trailing constraints it will prefer resizing it's font size before increasing it's bounds.

Steps to Reproduce:
Add a `UITextField` with `adjustsFontSizeToFitWidth = true`
Constrain it to a leading or centerX anchor
Type some text in the textfield

Expected Results:
The textfield to increase it's bounds

Actual Results:
The textfield reduces font size to the minimal allowed then increases it's bounds.




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