$ git clone -n https://src.fedoraproject.org/rpms/openfec.git /var/lib/mock/f45-build-21037-577/root/chroot_tmpdir/scmroot/openfec
Cloning into '/var/lib/mock/f45-build-21037-577/root/chroot_tmpdir/scmroot/openfec'...
$ git fetch origin 32b594a1e5ac616e824b0f5c90772f3c20fb1e1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openfec
 * [new ref]         32b594a1e5ac616e824b0f5c90772f3c20fb1e1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32b594a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild