$ git clone -n https://src.fedoraproject.org/rpms/yaml-cpp.git /var/lib/mock/f40-build-796966-140991/root/chroot_tmpdir/scmroot/yaml-cpp
Cloning into '/var/lib/mock/f40-build-796966-140991/root/chroot_tmpdir/scmroot/yaml-cpp'...
$ git fetch origin bf9f6b8f680766934e1e374da471e6c13c436b71:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yaml-cpp
 * [new ref]         bf9f6b8f680766934e1e374da471e6c13c436b71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf9f6b8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild