$ git clone -n https://src.fedoraproject.org/rpms/rust-pyo3-ffi.git /var/lib/mock/f41-build-1197827-22358/root/chroot_tmpdir/scmroot/rust-pyo3-ffi
Cloning into '/var/lib/mock/f41-build-1197827-22358/root/chroot_tmpdir/scmroot/rust-pyo3-ffi'...
$ git fetch origin 2f0ad768e04c6c7a8bcf35831c96b7ae93bdb1df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pyo3-ffi
 * [new ref]         2f0ad768e04c6c7a8bcf35831c96b7ae93bdb1df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f0ad76 Update to version 0.22.0; Fixes RHBZ#2293992