Can't unset min/max length on form text fields #1316

What went wrong, step-by-step?

1. Tried to remove a maximum limitation, but was unable to leave it blank.
2. As a result, could not create a non-limited length field.

What did you expect to happen?

Ability to leave the form empty such that the field no longer has a max length.

What URL can we use to see the issue?

What browser/operating system were you using?

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Have any screenshots? (Attach them by dragging the image here)

Who reported this? (If not you)