$ git clone -n https://src.fedoraproject.org/rpms/rust-num-derive.git /var/lib/mock/f39-build-1522117-35885/root/chroot_tmpdir/scmroot/rust-num-derive
Cloning into '/var/lib/mock/f39-build-1522117-35885/root/chroot_tmpdir/scmroot/rust-num-derive'...
$ git fetch origin 06b52511dfbb253fdb97910b38e92f326768bc80:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-num-derive
 * [new ref]         06b52511dfbb253fdb97910b38e92f326768bc80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 06b5251 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild