$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-Generator-PerlData.git /var/lib/mock/f39-build-1439881-32293/root/chroot_tmpdir/scmroot/perl-XML-Generator-PerlData
Cloning into '/var/lib/mock/f39-build-1439881-32293/root/chroot_tmpdir/scmroot/perl-XML-Generator-PerlData'...
$ git fetch origin 4c19f333036660b1062265bf91cec2854711d6c1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-Generator-PerlData
 * [new ref]         4c19f333036660b1062265bf91cec2854711d6c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c19f33 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild