Tooltip focus fails with some input components

[mathewlk]

Version: 3.1.1

Issue: Using v-tooltip.focus doesn't seem to work with InputNumber's. It works fine with InputText and with InputNumber without the focus, but when focus is added nothing shows up.

Steps to Reproduce: Add an element with v-tooltip.focus like this on the page:

<InputNumber
          id="purchasePrice"
          v-model="purchasePrice"
          prefix="$"
          v-tooltip.bottom.focus="'What you actually plan to pay for property, not necessarily the list price'"
        />

Nothing shows up when the number box is clicked.

Expected Results: Tooltip shows up similar to InputText

If this is expected, something should at least be added to the documentation. Although I think it'd be better to treat this like a bug as I'd imagine wanting to add help text to InputNumber would be a pretty common use case.

Thanks!

[cagataycivici]

Also applies to AutoComplete, InputMask ... Thanks!