$ git clone -n https://src.fedoraproject.org/rpms/perl-Git-PurePerl.git /var/lib/mock/f40-build-2017606-46328/root/chroot_tmpdir/scmroot/perl-Git-PurePerl
Cloning into '/var/lib/mock/f40-build-2017606-46328/root/chroot_tmpdir/scmroot/perl-Git-PurePerl'...
$ git fetch origin a3d5164390d59259728cc072aa1474242eeb5561:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Git-PurePerl
 * [new ref]         a3d5164390d59259728cc072aa1474242eeb5561 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3d5164 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild