$ git clone -n https://src.fedoraproject.org/rpms/perl-Role-Tiny.git /var/lib/mock/f45-build-26061-614/root/chroot_tmpdir/scmroot/perl-Role-Tiny
Cloning into '/var/lib/mock/f45-build-26061-614/root/chroot_tmpdir/scmroot/perl-Role-Tiny'...
$ git fetch origin f303410d6c933cb1137baee4f5b4da427937315e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Role-Tiny
 * [new ref]         f303410d6c933cb1137baee4f5b4da427937315e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f303410 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild