All over-world ruined portals spawn to same (first) portal created in nether.

Traveled through ruined portal in beginning of game and created a nether portal near spawn. Have tired multiple other over-world ruined portals hundreds of blocks apart, and all of them teleport to the first portal created in the nether.  OW 142,68,142 tp's to N 14,60,16,  OW 8,~60,920 tp's to the same N 14,60,16.