$ git clone -n https://src.fedoraproject.org/rpms/rust-mac.git /var/lib/mock/f38-build-side-43-rust-devel-1415733-31455/root/chroot_tmpdir/scmroot/rust-mac
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1415733-31455/root/chroot_tmpdir/scmroot/rust-mac'...
$ git fetch origin d2f83bf4a700dadd46b63b324affc00732c3b3c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-mac
 * [new ref]         d2f83bf4a700dadd46b63b324affc00732c3b3c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d2f83bf Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild