fixed: ui.Action.OpAtomAttrs, OpBondAttrs _isDummy() issues
fixed: ui.Action.OpAtomAttrs, OpBondAttrs _isDummy() issues

ggasoftware/ketcher,ggasoftware/ketcher,ggasoftware/ketcher,ggasoftware/ketcher,ggasoftware/ketcher,ggasoftware/ketcher