update erases custom snap areas

Describe the bug
I upgraded to v2.685 (990) today from the previous version, and all my custom snap areas seem to have disappeared as a result. I think this has happened with previous upgrades, too, but I didn't make the connection until now.

Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):
Trackpad, I guess?

Device information:

  • Type of Mac: 2017 MacBook Pro 13"
  • macOS version: Mojave 10.14.2
  • BetterTouchTool version: v2.685 (990)