$ git clone -n https://src.fedoraproject.org/rpms/bpftrace.git /var/lib/mock/f42-build-side-1-3562216-46722/root/chroot_tmpdir/scmroot/bpftrace
Cloning into '/var/lib/mock/f42-build-side-1-3562216-46722/root/chroot_tmpdir/scmroot/bpftrace'...
$ git fetch origin 16b248ca87baeccbf80413bd4b9fd8a870dd4aba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bpftrace
 * [new ref]         16b248ca87baeccbf80413bd4b9fd8a870dd4aba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16b248c Rebased to version 0.23.5