$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-gl.git /var/lib/mock/f41-build-700642-12889/root/chroot_tmpdir/scmroot/rust-gstreamer-gl
Cloning into '/var/lib/mock/f41-build-700642-12889/root/chroot_tmpdir/scmroot/rust-gstreamer-gl'...
$ git fetch origin 05f3b2aebdfca5f33a9d354a84ee741679297c73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-gl
 * [new ref]         05f3b2aebdfca5f33a9d354a84ee741679297c73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05f3b2a Update to version 0.22.0; Fixes RHBZ#2263355