The Spawn Actor from Class node's dropdown menu gets cut off when zoomed out

The Spawn Actor from Class node's dropdown menu gets cut off when zoomed out.

Reproduced in 4.7.2 binary and Main (//depot/UE4/Promotable-CL-2473270)

1. Open any project
2. Open any Blueprint
3. Create a Spawn Actor from Class node
4. Zoom all the way in
5. Click the Select Class dropdown menu
6. Click off the node
7. Zoom out to -1
8. Click the Select Class dropdown menu

Result:
The bottom options of the dropdown menu are cut off. More is cut off the further you zoom out.