$ git clone -n https://src.fedoraproject.org/rpms/gawk-json.git /var/lib/mock/f40-build-795380-140110/root/chroot_tmpdir/scmroot/gawk-json
Cloning into '/var/lib/mock/f40-build-795380-140110/root/chroot_tmpdir/scmroot/gawk-json'...
$ git fetch origin e6d5a666c33f5728128c494cb0718912e4419ef1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gawk-json
 * [new ref]         e6d5a666c33f5728128c494cb0718912e4419ef1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6d5a66 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild