$ git clone -n https://src.fedoraproject.org/rpms/python-sphinx-autobuild.git /var/lib/mock/f45-build-33026-666/root/chroot_tmpdir/scmroot/python-sphinx-autobuild
Cloning into '/var/lib/mock/f45-build-33026-666/root/chroot_tmpdir/scmroot/python-sphinx-autobuild'...
$ git fetch origin 5e1f2bb01efe9dfdcf31ac5aedacbfd6cc37a47c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-sphinx-autobuild
 * [new ref]         5e1f2bb01efe9dfdcf31ac5aedacbfd6cc37a47c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e1f2bb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild