as seen in 6.2 release notes:
LARGE and SMALL now support an array as Rank argument, in which case they return an array of ranked numbers. This to comply with ODF 1.2 OpenFormula and interoperability with other spreadsheet applications. (Takeshi Abe) i#32345
Moving to NEW
Olivier Hallot committed a patch related to this issue.
It has been pushed to "master":
tdf#124204 Changes in SMALL and LARGE functions