Update of timeshift fails for BTRFS root

For a few days now, my “yay -Syu” ends with the following messages:

Fehler: Der Vorgang konnte nicht durchgeführt werden (In Konflikt stehende Dateien)
timeshift: /etc/systemd/system/grub-btrfs.path existiert im Dateisystem
Fehler sind aufgetreten, keine Pakete wurden aktualisiert.

Translation:

Error: The process could not be executed (conflicting files)
timeshift: /etc/systemd/system/grub-btrfs.path exists in file system
Errors occured, no packages updated

Did I miss some after update work with the mentioned file? Do I need to rename the file, do some diffing here?

Please check @jonathon’s FAQ here:

Thanks for the link, pebcak. After studying the link I moved the file to a new name, as no package claimed it. Although it looks like a valid configuration file, the new timeshift installed the same file with more configuration. The problem looks solved.

Great!
After some time, if everything is alright you could just delete that old file.