$ git clone -n https://src.fedoraproject.org/rpms/boxed-cpp.git /var/lib/mock/f40-build-2338855-59622/root/chroot_tmpdir/scmroot/boxed-cpp
Cloning into '/var/lib/mock/f40-build-2338855-59622/root/chroot_tmpdir/scmroot/boxed-cpp'...
$ git fetch origin 9932cbb5f66d022061a44ee19c8b7b0dfd15d083:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/boxed-cpp
 * [new ref]         9932cbb5f66d022061a44ee19c8b7b0dfd15d083 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9932cbb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild