$ git clone -n https://src.fedoraproject.org/rpms/jgmenu.git /var/lib/mock/f39-build-1494816-34543/root/chroot_tmpdir/scmroot/jgmenu
Cloning into '/var/lib/mock/f39-build-1494816-34543/root/chroot_tmpdir/scmroot/jgmenu'...
$ git fetch origin 14a3578cb82eafd7441e6364d4401627fb5132ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jgmenu
 * [new ref]         14a3578cb82eafd7441e6364d4401627fb5132ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14a3578 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild