Inconsistent auto capitalisation of custom field handle first letter on mobile devices

[richhayler]

Description

Minor UI enhancement.
On a mobile device (i.e. iPad), when creating a new field, deleting the auto generated field handle and then keying in a new handle, the first letter is auto capitalised instead of being lowercase (by default) to ensure consistency.

This automatic functionality is a slight annoyance. As a workaround, I typically key in first letter of the new field handle twice and then backspace and delete the first auto capitalised letter which is pretty clunky.

Steps to reproduce

1. Access the CP on a mobile device (i.e. iPad)
2. Create a new field
3. Delete the auto generated field handle
4. Key in the new field handle - the first letter of the handle is auto capitalised and should be overridden to be lowercase as the default

[richhayler]

Same issue for entry slugs, section handles, section site entry-uri format and template fields, global set handles, asset volume handles...

[brandonkelly]

Should be fixed in the next release!