$ git clone -n https://src.fedoraproject.org/rpms/rust-json5.git /var/lib/mock/f38-build-side-42-init-devel-1393914-31050/root/chroot_tmpdir/scmroot/rust-json5
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1393914-31050/root/chroot_tmpdir/scmroot/rust-json5'...
$ git fetch origin 35c1bf1112cb56b07ad67926936da6c5937d660f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-json5
 * [new ref]         35c1bf1112cb56b07ad67926936da6c5937d660f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35c1bf1 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild