If you're using Syncthing-Fork on Android, you may want to stop auto-updates, downgrade or even uninstall for now: The project has changed hands without any forewarning or any kind of communication from the original developer. Nobody knows the new guy, and as far as I can tell, it's not yet clear whether he can be trusted.
Discussion on the Syncthing forum
nel0x, who already manages the Play Store releases, has forked the last known “save” version and plans to continue developing and managing it under the name
Syncthing-Android.