No way to enter comma into a text field with .emailAddress keyboard type

Number:rdar://FB9997385 Date Originated:2022-04-27
Status:Open Resolved:
Product:iOS Product Version:15.4.1
Classification: Reproducible:
When a text field has keyboard type set to UIKeyboardType.emailAddress, there is no way to enter a comma. 

Normally, the user can access more symbols by long-pressing some keys. This also works here: one can enter all kinds of special symbols (currency, mathematical, advanced punctuation). But not a standard comma.

This is NOT a format enforcement issue, because the user still can enter other characters not allowed in email addresses.

Steps to reproduce:
- Open device settings
- Tap Mail→ Accounts→ Add Account→ Other→ Add Mail Account
- Tap the Email field
- Try to enter a comma

Checked on iOS 15.4.1, both US English and German layouts.


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