$ git clone -n https://src.fedoraproject.org/rpms/rust-joinery.git /var/lib/mock/f38-build-side-43-rust-devel-1416737-31457/root/chroot_tmpdir/scmroot/rust-joinery
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1416737-31457/root/chroot_tmpdir/scmroot/rust-joinery'...
$ git fetch origin 38981a151f7ebc62770a4c5812a837b769821837:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-joinery
 * [new ref]         38981a151f7ebc62770a4c5812a837b769821837 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38981a1 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild