$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-gl-wayland-sys /var/lib/mock/f42-build-3429014-45391/root/chroot_tmpdir/scmroot/rust-gstreamer-gl-wayland-sys
Cloning into '/var/lib/mock/f42-build-3429014-45391/root/chroot_tmpdir/scmroot/rust-gstreamer-gl-wayland-sys'...
$ git fetch origin b1c8af8b021a5ff52cf01c688c346d0b5c56d91d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-gl-wayland-sys
 * [new ref]         b1c8af8b021a5ff52cf01c688c346d0b5c56d91d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1c8af8 Update to version 0.23.5; Fixes RHBZ#2333672