Callling "Get[AxisMapping]" or adding AxisMapping Event node in blueprint will break code input implementation for that axis mapping

When character input is defined in code, adding a call to the Get[AxisMapping] node in blueprints causes input for the specific mapping to fail.

Note:
This only affects code based input, Blueprint template project does not show this bug occurring.

1. Open UE4 Third Person Template code project
2. Open ThirdPersonCharacter blueprint
3. Right click in Event Graph and type "MoveForward"
4. Select the "MoveForward" under Axis Values
5. Add Print String node
6. Wire Tick event into Print String input exec pin
7. Wire Get MoveForward node into In String pin
8. PIE

Result:
The input is recognized but the character does not respond to the input.

Expected:
The Get node provides the value of the axis without affecting the input command.