Unity UI [Fixed by Unity on 2019.2.8] OnValueChanged Dynamic Value not working (tested on Slider)

I'm using Unity 2019.2.5f and I've just noticed the Dynamic Value functions are not working correctly.

Here you can see the OnValueChanged function used to have it's parameters as (single) and it would allow you to send it's value as a dynamic parameter on a simple code like the one there.

but now the dynamic functions don't appear.

Here's the comparison with 2019.1.12

 

I issued a Bug report, and they replied saying this will be fixed in 2019.2.8

Just in case anyone finds this same issue.