$ git clone -n https://src.fedoraproject.org/rpms/rust-zstd-safe.git /var/lib/mock/f40-build-1848613-24974/root/chroot_tmpdir/scmroot/rust-zstd-safe
Cloning into '/var/lib/mock/f40-build-1848613-24974/root/chroot_tmpdir/scmroot/rust-zstd-safe'...
$ git fetch origin 70d9cb1f21e48c6a1a6b3adf16606be350029488:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zstd-safe
 * [new ref]         70d9cb1f21e48c6a1a6b3adf16606be350029488 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70d9cb1 Update to version 7.2.0; Fixes RHBZ#2296078