diamonds appearing at y=58

Cannot reproduce, there are no diamonds there.

thanks for checking, i uploaded a screenshot, but did not record video of breaking them.  was there a change that modifies the spawning of ores to reoccur? I created the map in snapshot 45, I can attach it here if you would like, but I mined the diamonds to see how many there were, so they are not there now, just the space.

does it matter that I created the game on java server, not java single player?

ignore me I guess, I created it in single player w45, upgraded to w46 and it was not there in either one.  I can test again on a clean build on server if necessary, but otherwise leave it closed.