[Fixed] Assign material to Polygon selection

When using the Material "Assign to Object or Polygon Selection" on a polygon selection, the material is also added to unselected objects previously selected faces.

Example:-

3 seperate box.
The box far left as previously had its top polygon selected. The middle box as peviously had 2 polygons selected.



I select right side box, and select its top polygon. Create a new material, and "Assign to object or polygon selection"


The result is that the current selected polygon material is changed, but also all the previously selected polygon on all unselected objects are also changed.