$ git clone -n https://src.fedoraproject.org/rpms/rust-tracing-serde.git /var/lib/mock/f40-build-2644126-66496/root/chroot_tmpdir/scmroot/rust-tracing-serde
Cloning into '/var/lib/mock/f40-build-2644126-66496/root/chroot_tmpdir/scmroot/rust-tracing-serde'...
$ git fetch origin 5775480e2bd768b65618a4a2e64d51353c433eff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tracing-serde
 * [new ref]         5775480e2bd768b65618a4a2e64d51353c433eff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5775480 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild