$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-editing-services-sys.git /var/lib/mock/f38-build-side-43-rust-devel-1399142-31123/root/chroot_tmpdir/scmroot/rust-gstreamer-editing-services-sys
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1399142-31123/root/chroot_tmpdir/scmroot/rust-gstreamer-editing-services-sys'...
$ git fetch origin 7d9bf7acb9f242684c647d19a9a08b9fa162dc9f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-editing-services-sys
 * [new ref]         7d9bf7acb9f242684c647d19a9a08b9fa162dc9f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d9bf7a Update to 0.21.0