Underwater effect disappears if player is perfectly between blocks

[Cervator]

Found what looks to be a small bug - if you're swimming in a large block of water you may occasionally catch a "blink" with much brighter lighting for a split second. Turns out after some tinkering that it seems to be if you're exactly between blocks, the underwater effect goes poof. Fairly easy to replicate - not sure if it just happens for me or in general