$ git clone -n https://src.fedoraproject.org/rpms/rsakeyfind.git /var/lib/mock/f45-build-34678-690/root/chroot_tmpdir/scmroot/rsakeyfind
Cloning into '/var/lib/mock/f45-build-34678-690/root/chroot_tmpdir/scmroot/rsakeyfind'...
$ git fetch origin afcc1c74f1af1d1204ddd82acab966ffdb50054e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rsakeyfind
 * [new ref]         afcc1c74f1af1d1204ddd82acab966ffdb50054e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at afcc1c7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild