$ git clone -n https://src.fedoraproject.org/rpms/rust-zeroize.git /var/lib/mock/f39-build-1844221-42049/root/chroot_tmpdir/scmroot/rust-zeroize
Cloning into '/var/lib/mock/f39-build-1844221-42049/root/chroot_tmpdir/scmroot/rust-zeroize'...
$ git fetch origin a323a5dcdfda085753311c15f7c7480697acb6f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zeroize
 * [new ref]         a323a5dcdfda085753311c15f7c7480697acb6f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a323a5d Update to version 1.7.0; Fixes RHBZ#2250104