twa: fix duplicate propositions in ap()
Calling register_ap() with same atomic proposition several time, for instance via copy_ap() in a product, would create duplicate atomic propositions. This fix will be exercised by the next patch. * spot/twa/twa.hh: Here. * spot/twaalgos/compsusp.cc, spot/twaalgos/ltl2taa.cc: Fix to correctly register atomic propositions. * NEWS: Mention it.
Showing with 24 additions and 7 deletions