$ git clone -n https://src.fedoraproject.org/rpms/rust-actix-codec.git /var/lib/mock/f45-build-39797-756/root/chroot_tmpdir/scmroot/rust-actix-codec
Cloning into '/var/lib/mock/f45-build-39797-756/root/chroot_tmpdir/scmroot/rust-actix-codec'...
$ git fetch origin 874be64f5d9ce32876392d1e7ceac7fac44198a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-actix-codec
 * [new ref]         874be64f5d9ce32876392d1e7ceac7fac44198a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 874be64 Update to version 0.5.3; Fixes RHBZ#2525341