Preserve object identity when adding 0 to cpxnum
Preserve object identity when adding 0 to cpxnum

acenode/gambit,jasperla/gambit,thewhimer/gambit,BeImprovised/gambit,thewhimer/gambit,thewhimer/gambit,thewhimer/gambit,thewhimer/gambit,thewhimer/gambit,acenode/gambit,acenode/gambit,jasperla/gambit,acenode/gambit,BeImprovised/gambit,jasperla/gambit,BeImprovised/gambit,jasperla/gambit,BeImprovised/gambit