$ git clone -n https://src.fedoraproject.org/rpms/R-quadprog.git /var/lib/mock/f45-build-6367-348/root/chroot_tmpdir/scmroot/R-quadprog
Cloning into '/var/lib/mock/f45-build-6367-348/root/chroot_tmpdir/scmroot/R-quadprog'...
$ git fetch origin 98dc969083a9c20a0b0f75fc77380ac31da7519f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-quadprog
 * [new ref]         98dc969083a9c20a0b0f75fc77380ac31da7519f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98dc969 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild