More or less a typo, but overwrites other settings.
movtweaks.c line 117 CONFIG_INT("movie.rec-key-action", movie_rec_key_long, 0); should be CONFIG_INT("movie.rec-key-long", movie_rec_key_long, 0);
movie.rec-key-action is an other setting
Also, when is FEATURE_MOVIE_AUTOSTOP_RECORDING coming back? It has been disabled and it says it will be moved to scripts - never happen though.