$ git clone -n https://src.fedoraproject.org/rpms/perl-Class-Accessor-Grouped.git /var/lib/mock/f45-build-22306-590/root/chroot_tmpdir/scmroot/perl-Class-Accessor-Grouped
Cloning into '/var/lib/mock/f45-build-22306-590/root/chroot_tmpdir/scmroot/perl-Class-Accessor-Grouped'...
$ git fetch origin fe8aa2892a246c41c80a36822bbd6c49383fb556:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Class-Accessor-Grouped
 * [new ref]         fe8aa2892a246c41c80a36822bbd6c49383fb556 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe8aa28 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild