[NME] Pasting hex color from one color3 to another actually pastes the original node as a new node

[PatrickRyanMS]

When trying to paste the hex value of one color3 node into the hex field of another existing color3 node does not actually paste the value, but instead creates a duplicate node of the original node. Repro steps below:

• Open color picker for one color3 and then highlight hex value and press ctrl+c
  
• Open color picker for second color3 and highlight hex value
  
• press ctrl+v to paste value. Note that the color picker closes and while the second color3 node is still selected a new copy of the first node will be pasted into the graph and the original color of the second color3 is not changed:
  

Expected
The hex value copied from the original color3 node would be pasted into the hex field of the second color3 node and no duplicate of the original node would be created.