$ git clone -n https://src.fedoraproject.org/rpms/otf2bdf.git /var/lib/mock/f45-build-21235-581/root/chroot_tmpdir/scmroot/otf2bdf
Cloning into '/var/lib/mock/f45-build-21235-581/root/chroot_tmpdir/scmroot/otf2bdf'...
$ git fetch origin 0d2d285febbf842a02d0bac2b8f2c47828483b10:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/otf2bdf
 * [new ref]         0d2d285febbf842a02d0bac2b8f2c47828483b10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d2d285 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild