$ git clone -n https://src.fedoraproject.org/rpms/rust-sequoia-octopus-librnp.git /var/lib/mock/f40-build-2658668-66917/root/chroot_tmpdir/scmroot/rust-sequoia-octopus-librnp
Cloning into '/var/lib/mock/f40-build-2658668-66917/root/chroot_tmpdir/scmroot/rust-sequoia-octopus-librnp'...
$ git fetch origin 09f2b2b95f53efcb5217a39a12dfa18e17b6f833:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sequoia-octopus-librnp
 * [new ref]         09f2b2b95f53efcb5217a39a12dfa18e17b6f833 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 09f2b2b Update to version 1.8.1; Fixes RHBZ#2270324