$ git clone -n https://src.fedoraproject.org/rpms/rust-cargo-options.git /var/lib/mock/f39-build-1653446-40514/root/chroot_tmpdir/scmroot/rust-cargo-options
Cloning into '/var/lib/mock/f39-build-1653446-40514/root/chroot_tmpdir/scmroot/rust-cargo-options'...
$ git fetch origin ca3adc01f5a332b9f6abd2692b176be5721e2c61:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cargo-options
 * [new ref]         ca3adc01f5a332b9f6abd2692b176be5721e2c61 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca3adc0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild