$ git clone -n https://src.fedoraproject.org/rpms/rust-num_enum_derive.git /var/lib/mock/f45-build-43470-803/root/chroot_tmpdir/scmroot/rust-num_enum_derive
Cloning into '/var/lib/mock/f45-build-43470-803/root/chroot_tmpdir/scmroot/rust-num_enum_derive'...
$ git fetch origin 2dc9f0dac20bccadd6e7d0af450253d0d47fc334:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-num_enum_derive
 * [new ref]         2dc9f0dac20bccadd6e7d0af450253d0d47fc334 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2dc9f0d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild