Tooltip: loose reactivity when the content is empty

[nicolascvoodoo]

Describe the bug

When the tooltip is empty, there is no way we can set content afterward.

Here is a working example: https://codesandbox.io/s/elastic-darkness-yity6s?file=/src/TooltipDemo.vue

Reproducer

No response

PrimeVue version

3.18.0

Vue version

3.x

Language

ALL

Build / Runtime

Vue CLI App

Browser(s)

Chrome 106

Steps to reproduce the behavior

Create a tooltip with dynamic value (from a computed for instance). Make this value empty, then add content to the value.

Expected behavior

The Tooltip should not be displayed when the value is empty and should be displayed the value when we add content afterward. This is not the case (see https://codesandbox.io/s/elastic-darkness-yity6s?file=/src/TooltipDemo.vue)