$ git clone -n https://src.fedoraproject.org/rpms/rust-darling_macro0.12.git /var/lib/mock/f38-build-side-43-rust-devel-1417158-31459/root/chroot_tmpdir/scmroot/rust-darling_macro0.12
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1417158-31459/root/chroot_tmpdir/scmroot/rust-darling_macro0.12'...
$ git fetch origin 23824948aaa35110066655c1e53de42c0e91aee7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-darling_macro0.12
 * [new ref]         23824948aaa35110066655c1e53de42c0e91aee7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2382494 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild