$ git clone -n https://src.fedoraproject.org/rpms/rust-zbus.git /var/lib/mock/f38-build-side-43-rust-devel-1406106-31260/root/chroot_tmpdir/scmroot/rust-zbus
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1406106-31260/root/chroot_tmpdir/scmroot/rust-zbus'...
$ git fetch origin ef10ab89da19c8b92d7009ee852d277e784d32ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zbus
 * [new ref]         ef10ab89da19c8b92d7009ee852d277e784d32ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef10ab8 Update to version 3.14.1; Fixes RHBZ#2218393