$ git clone -n https://src.fedoraproject.org/rpms/rust-zerocopy.git /var/lib/mock/f40-build-1466308-23684/root/chroot_tmpdir/scmroot/rust-zerocopy
Cloning into '/var/lib/mock/f40-build-1466308-23684/root/chroot_tmpdir/scmroot/rust-zerocopy'...
$ git fetch origin 0a7826073953d4e102b1d3ef749baaa758687538:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zerocopy
 * [new ref]         0a7826073953d4e102b1d3ef749baaa758687538 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a78260 Update to version 0.7.35; Fixes RHBZ#2295593