Link: https://www.wikidata.org/w/index.php?title=Q230497&diff=2100448177.
The summary says Removed claim: date of birth (P569): 670, but the actual value was 999.
Note that the previous change, made almost two minutes earlier, was a change from 670 (displayed value) to 999 (removed value).

Not sure how often it happens, just randomly came across this change.