Context menu defaults to "!=" node instead of boolean "Not" node when searching for not from a boolean

Context menu defaults to != node instead of Not node when searching for Not from a boolean.

User Note:
The issue here is that in almost all cases you want the "NOT Boolean" node rather than the "Not Equal" node, which is why all previous version of UE have defaulted to the "NOT Boolean" node. This broken behaviour slows down working with Boolean variables as checking for the NOT condition of a Boolean variable is a common use case.

1. Create or open a project made with Preview 2
2. Within a blueprint create a Boolean Variable
3. Ctrl+Drag the Boolean into the EventGraph
4. Drag off the output pin of the Boolean reference
5. In the context menu search "not"

Expected Results:
The selected result from the context menu is the Not node as it was in previous releases.

Actual Results:
The != node is the select result.