$ git clone -n https://src.fedoraproject.org/rpms/perl-Gtk3-ImageView.git /var/lib/mock/f39-build-1620069-38678/root/chroot_tmpdir/scmroot/perl-Gtk3-ImageView
Cloning into '/var/lib/mock/f39-build-1620069-38678/root/chroot_tmpdir/scmroot/perl-Gtk3-ImageView'...
$ git fetch origin b1953ba95575df68723089ac46fd76d552735101:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Gtk3-ImageView
 * [new ref]         b1953ba95575df68723089ac46fd76d552735101 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1953ba Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild