Describe the bug
According to manual one can create custom validator with error names without period but such errors are not detected withhasError, i.e.$myForm.hasError("my_error") or$myForm.hasError("minLength") is always false even if validator returnsvalid =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 likeminLength should work or be adjusted to allow to be detected usinghasError.