$ git clone -n https://src.fedoraproject.org/rpms/kernelshark.git /var/lib/mock/f40-build-2292441-56136/root/chroot_tmpdir/scmroot/kernelshark
Cloning into '/var/lib/mock/f40-build-2292441-56136/root/chroot_tmpdir/scmroot/kernelshark'...
$ git fetch origin 35316ea1cfa4275d9adcb50ce61a97c7fbcc656a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kernelshark
 * [new ref]         35316ea1cfa4275d9adcb50ce61a97c7fbcc656a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35316ea Bump to build for libtrace* update