$ git clone -n https://src.fedoraproject.org/rpms/golang-github-insomniacslk-xjson.git /var/lib/mock/f40-build-2446210-61290/root/chroot_tmpdir/scmroot/golang-github-insomniacslk-xjson
Cloning into '/var/lib/mock/f40-build-2446210-61290/root/chroot_tmpdir/scmroot/golang-github-insomniacslk-xjson'...
$ git fetch origin d8b8f5eb09adf9baf489b5be3493fcafd6aa153f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-insomniacslk-xjson
 * [new ref]         d8b8f5eb09adf9baf489b5be3493fcafd6aa153f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8b8f5e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild