$ git clone -n https://src.fedoraproject.org/rpms/kiwix-desktop.git /var/lib/mock/f39-build-1567710-37600/root/chroot_tmpdir/scmroot/kiwix-desktop
Cloning into '/var/lib/mock/f39-build-1567710-37600/root/chroot_tmpdir/scmroot/kiwix-desktop'...
$ git fetch origin 1a686bfd7031731d6f449a83e66d039a0e416f14:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kiwix-desktop
 * [new ref]         1a686bfd7031731d6f449a83e66d039a0e416f14 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a686bf Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild