[4.17.2] "Reset to Default" in the editor doesn't accept negative values?

I posted an ask on Answer Hub, but its been 3 days with no answer.
I dunno if I tagged the question wrong or just that nobody knows, so I thought Id try here.
This is the Answer Hub question.

I use -1 for many of my integer and float variables as a state indicator, so having the editor reset to 0 instead of the default I setup in C++ is requiring extra time and work.
Its something I can work around by just manually inputting the -1, but it would save a LOT time and effort if I didn’t have to manually input something I already set in C++ for every variable that needs it. Any thoughts would be appreciated.