$ git clone -n https://src.fedoraproject.org/rpms/perl-CGI-Session.git /var/lib/mock/f39-build-1573165-37801/root/chroot_tmpdir/scmroot/perl-CGI-Session
Cloning into '/var/lib/mock/f39-build-1573165-37801/root/chroot_tmpdir/scmroot/perl-CGI-Session'...
$ git fetch origin 7cef66a783911096854a98725a2d9398ae79e2f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CGI-Session
 * [new ref]         7cef66a783911096854a98725a2d9398ae79e2f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7cef66a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild