Wrong property values shown on styleManager when state is :hover

[glaprida]

This happens on the current demo: https://grapesjs.com/demo

Example:
If I have an element with a margin-top: 20px on the default state, and no styling set for the :hover state,
when switching state to :hover it will show 0 on the margin-top on the styleManager. (It actually shows empty , and so the placeholder is visible with the default value)

This is misleading, because really when hovering it won't change margin to 0... it will stay at 20.

I think it should show the inherited value from the default state, and if the user changes it, the clear button should revert to the inherited value as well.