$ git clone -n https://src.fedoraproject.org/rpms/yggdrasil-worker-package-manager.git /var/lib/mock/f40-build-2260483-54410/root/chroot_tmpdir/scmroot/yggdrasil-worker-package-manager
Cloning into '/var/lib/mock/f40-build-2260483-54410/root/chroot_tmpdir/scmroot/yggdrasil-worker-package-manager'...
$ git fetch origin 7a19b4bb4fb58937e65000c504fb7910fde224a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yggdrasil-worker-package-manager
 * [new ref]         7a19b4bb4fb58937e65000c504fb7910fde224a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a19b4b Only apply devendoring patch in Fedora builds