$ git clone -n https://src.fedoraproject.org/rpms/kactivitymanagerd.git /var/lib/mock/f41-build-860432-168945/root/chroot_tmpdir/scmroot/kactivitymanagerd
Cloning into '/var/lib/mock/f41-build-860432-168945/root/chroot_tmpdir/scmroot/kactivitymanagerd'...
$ git fetch origin 1ba7bbf34cac66a24a1df8d96b89bb098b0fdf1a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kactivitymanagerd
 * [new ref]         1ba7bbf34cac66a24a1df8d96b89bb098b0fdf1a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ba7bbf 6.2.2