$ git clone -n https://src.fedoraproject.org/rpms/python-tiktoken.git /var/lib/mock/f40-build-1524156-23919/root/chroot_tmpdir/scmroot/python-tiktoken
Cloning into '/var/lib/mock/f40-build-1524156-23919/root/chroot_tmpdir/scmroot/python-tiktoken'...
$ git fetch origin 884a9cb11f415c1e2e879d0f27c284a8f63dc0dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-tiktoken
 * [new ref]         884a9cb11f415c1e2e879d0f27c284a8f63dc0dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 884a9cb Update to 0.6.0 (rhbz#2263478)