Checkboxes appearing with hidden EditCondition variables

When a public uproperty variable has the meta specifier EditCondition set to respond to a private boolean, a checkbox appears next to the public variable in blueprints. While the checkbox accurately reflects the private bool state, the checkbox cannot be edited manually and can cause confusion.

The only way to remove the checkbox is to add a visibility specifier to the boolean. This however causes the private boolean to appear in the details.

Regression:
No - same issue occurs in 4.15.3

1. Open UE4 Editor (any project)
2. Add code to project based on Actor (MyActor)
3. Setup MyActor.h as shown in attached .h file
4. Setup MyActor.cpp as shown in attached .cpp file
5. Compile
6. Create a blueprint based on MyActor (MyActorBP)
7. Add instance of MyActorBP to the level

Result:
The StartingAlpha and Duration variables shown in the details panel have checkboxes next to their names that cannot be edited. EndingAlpha does not have a checkbox however the bShowEndingAlpha variable is present in details

Expected:
Checkbox does not appear for public variables using private EditCondition booleans