$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-gtk.git /var/lib/mock/f40-build-2285409-55677/root/chroot_tmpdir/scmroot/fcitx5-gtk
Cloning into '/var/lib/mock/f40-build-2285409-55677/root/chroot_tmpdir/scmroot/fcitx5-gtk'...
$ git fetch origin f7dfd8df48d5b5b187a0e729619ad59da2b2894b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-gtk
 * [new ref]         f7dfd8df48d5b5b187a0e729619ad59da2b2894b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f7dfd8d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild