$ git clone -n https://src.fedoraproject.org/rpms/makeself.git /var/lib/mock/f45-build-17952-506/root/chroot_tmpdir/scmroot/makeself
Cloning into '/var/lib/mock/f45-build-17952-506/root/chroot_tmpdir/scmroot/makeself'...
$ git fetch origin f61c5e4f190a03bd37995965c9d518ac4f4697bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/makeself
 * [new ref]         f61c5e4f190a03bd37995965c9d518ac4f4697bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f61c5e4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild