$ git clone -n https://src.fedoraproject.org/rpms/golang-github-insomniacslk-xjson.git /var/lib/mock/f38-build-side-42-init-devel-683938-26751/root/chroot_tmpdir/scmroot/golang-github-insomniacslk-xjson
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-683938-26751/root/chroot_tmpdir/scmroot/golang-github-insomniacslk-xjson'...
$ git fetch origin b1d13a8cd7bcad7802a7aae7963e342daa8e14d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-insomniacslk-xjson
 * [new ref]         b1d13a8cd7bcad7802a7aae7963e342daa8e14d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1d13a8 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild