$ git clone -n https://src.fedoraproject.org/rpms/perl-CPAN-02Packages-Search.git /var/lib/mock/f45-build-21982-589/root/chroot_tmpdir/scmroot/perl-CPAN-02Packages-Search
Cloning into '/var/lib/mock/f45-build-21982-589/root/chroot_tmpdir/scmroot/perl-CPAN-02Packages-Search'...
$ git fetch origin 7428989398bc3d9eb2fa57076976af108065d6a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CPAN-02Packages-Search
 * [new ref]         7428989398bc3d9eb2fa57076976af108065d6a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7428989 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild