Error names without period are not detected in hasError

[pboguslawski]

Describe the bug
According to manual one can create custom validator with error names without period but such errors are not detected with hasError, i.e. $myForm.hasError("my_error") or $myForm.hasError("minLength") is always false even if validator returns valid = false.

No such problem when period is used in error name i.e. $myForm.hasError("my.error").

Checked in svelte-forms 2.3.1.

Expected behavior
hasError or manual should be fixed. Standard error names like minLength should work or be adjusted to allow to be detected using hasError.