$ git clone -n https://src.fedoraproject.org/rpms/python-httpsig-cffi.git /var/lib/mock/f45-build-31010-649/root/chroot_tmpdir/scmroot/python-httpsig-cffi
Cloning into '/var/lib/mock/f45-build-31010-649/root/chroot_tmpdir/scmroot/python-httpsig-cffi'...
$ git fetch origin 9bfff47f18e80a3c2d0c934894611bbba7402e1b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-httpsig-cffi
 * [new ref]         9bfff47f18e80a3c2d0c934894611bbba7402e1b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9bfff47 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild