$ git clone -n https://src.fedoraproject.org/rpms/python-binstruct.git /var/lib/mock/f45-build-29796-641/root/chroot_tmpdir/scmroot/python-binstruct
Cloning into '/var/lib/mock/f45-build-29796-641/root/chroot_tmpdir/scmroot/python-binstruct'...
$ git fetch origin 1e4c929e4f3a0e135b1d320379f250af0b10f04f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-binstruct
 * [new ref]         1e4c929e4f3a0e135b1d320379f250af0b10f04f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1e4c929 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild