During the last years several fixes were made on the CLIPS 6.30 codebase. Could you please release CLIPS 6.32 or update CLIPS 6.30? It is not available among the downloadable releases.
This is affecting some user of the Python bindings:
https://github.com/noxdafox/clipspy/issues/26
Bug fixes and project updates for CLIPS 6.31 are now available as a downloadable release: https://sourceforge.net/projects/clipsrules/files/CLIPS/6.31/
Thanks! I already updated the Python bindings Makefile to use the new release.