$ git clone -n https://src.fedoraproject.org/rpms/rust-pkcs8.git /var/lib/mock/f45-build-43929-809/root/chroot_tmpdir/scmroot/rust-pkcs8
Cloning into '/var/lib/mock/f45-build-43929-809/root/chroot_tmpdir/scmroot/rust-pkcs8'...
$ git fetch origin e36e538da7cce4449f5dde7c56e4e8e3f32cbbd9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pkcs8
 * [new ref]         e36e538da7cce4449f5dde7c56e4e8e3f32cbbd9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e36e538 Update to version 0.11.0; Fixes RHBZ#2463302