$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-gl-sys.git /var/lib/mock/f45-build-42219-791/root/chroot_tmpdir/scmroot/rust-gstreamer-gl-sys
Cloning into '/var/lib/mock/f45-build-42219-791/root/chroot_tmpdir/scmroot/rust-gstreamer-gl-sys'...
$ git fetch origin 2e0df65784bd0dc38c8dd82debacbba3527a5d98:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-gl-sys
 * [new ref]         2e0df65784bd0dc38c8dd82debacbba3527a5d98 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e0df65 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild