$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-pbutils.git /var/lib/mock/f41-build-700637-12889/root/chroot_tmpdir/scmroot/rust-gstreamer-pbutils
Cloning into '/var/lib/mock/f41-build-700637-12889/root/chroot_tmpdir/scmroot/rust-gstreamer-pbutils'...
$ git fetch origin 14e1ba470b1083cd99922e713b7129a5895331ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-pbutils
 * [new ref]         14e1ba470b1083cd99922e713b7129a5895331ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14e1ba4 Update to version 0.22.0; Fixes RHBZ#2263362