$ git clone -n https://src.fedoraproject.org/rpms/rust-structopt.git /var/lib/mock/f38-build-side-43-rust-devel-1413125-31443/root/chroot_tmpdir/scmroot/rust-structopt
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1413125-31443/root/chroot_tmpdir/scmroot/rust-structopt'...
$ git fetch origin 506a11120c7f5fc85d6688b89625b0a4af976592:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-structopt
 * [new ref]         506a11120c7f5fc85d6688b89625b0a4af976592 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 506a111 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild