$ git clone -n https://src.fedoraproject.org/rpms/python-tiktoken.git /var/lib/mock/f45-build-39762-752/root/chroot_tmpdir/scmroot/python-tiktoken
Cloning into '/var/lib/mock/f45-build-39762-752/root/chroot_tmpdir/scmroot/python-tiktoken'...
$ git fetch origin 39bc9fde121d08514b272c1cb94453e314b5a9ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-tiktoken
 * [new ref]         39bc9fde121d08514b272c1cb94453e314b5a9ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39bc9fd opt-in to packit for rawhide