$ git clone -n https://src.fedoraproject.org/rpms/perl-Gtk2.git /var/lib/mock/f39-build-1547559-36728/root/chroot_tmpdir/scmroot/perl-Gtk2
Cloning into '/var/lib/mock/f39-build-1547559-36728/root/chroot_tmpdir/scmroot/perl-Gtk2'...
$ git fetch origin ea01cddab29cb9f155ed5c139bd33a03ea89df6f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Gtk2
 * [new ref]         ea01cddab29cb9f155ed5c139bd33a03ea89df6f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ea01cdd Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild