As the title says, I hope this is fixed soon. I Kickstarted the Premium Collectors Edition and don't want to lose anything because I picked the wrong platform.
I just checked in tonight to activate my key for the "Kickstarter Ultimate Signed Edition" (299$) on GOG.
Sadly it seems that this maps to the "Core Edition" on GOG.
Additional Items are activated separately.
Since I have my pride ;-) I bought the Mythical Edition on top to include upcoming DLCs (which do not seem to be included in the Ultimate Edition as far as I can see in the FAQ).
I just hope that GOG is able to deactivate the Core Edition Key which I allready spent because I was impatient, so I can gift that to a friend.