$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-gl-wayland-sys.git /var/lib/mock/f39-build-1572737-37791/root/chroot_tmpdir/scmroot/rust-gstreamer-gl-wayland-sys
Cloning into '/var/lib/mock/f39-build-1572737-37791/root/chroot_tmpdir/scmroot/rust-gstreamer-gl-wayland-sys'...
$ git fetch origin 489869f64ba5e0401c148ce27e47f2c344af5445:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-gl-wayland-sys
 * [new ref]         489869f64ba5e0401c148ce27e47f2c344af5445 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 489869f Update to version 0.21.1; Fixes RHBZ#2245488