$ git clone -n https://src.fedoraproject.org/rpms/python3-docs.git /var/lib/mock/f39-build-1615542-38638/root/chroot_tmpdir/scmroot/python3-docs
Cloning into '/var/lib/mock/f39-build-1615542-38638/root/chroot_tmpdir/scmroot/python3-docs'...
$ git fetch origin 6ece5f532f891e1be069d6e12e9e40645980d720:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python3-docs
 * [new ref]         6ece5f532f891e1be069d6e12e9e40645980d720 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ece5f5 Update to 3.12.0 final