$ git clone -n https://src.fedoraproject.org/rpms/perl-MetaCPAN-API.git /var/lib/mock/f45-build-24875-606/root/chroot_tmpdir/scmroot/perl-MetaCPAN-API
Cloning into '/var/lib/mock/f45-build-24875-606/root/chroot_tmpdir/scmroot/perl-MetaCPAN-API'...
$ git fetch origin dda3205d190e8e64f6016a41cf86d6e0e24c19e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MetaCPAN-API
 * [new ref]         dda3205d190e8e64f6016a41cf86d6e0e24c19e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dda3205 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild