$ git clone -n https://src.fedoraproject.org/rpms/rust-tracing.git /var/lib/mock/f40-build-2658305-66917/root/chroot_tmpdir/scmroot/rust-tracing
Cloning into '/var/lib/mock/f40-build-2658305-66917/root/chroot_tmpdir/scmroot/rust-tracing'...
$ git fetch origin 56887fbd166b40ba86ddca98776ca3e079e8adb6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tracing
 * [new ref]         56887fbd166b40ba86ddca98776ca3e079e8adb6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56887fb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild