Max builtins (Z/à/M) have weird behavior on lists of lists of integers that includes an empty inner list

[kcruijss]

The min/max builtins will give the flattened integer on multi-dimensional list arguments, which is a great feature I've used a lot of times.

However, there seems to be unexpected behavior when a list of lists of integers includes an empty list. At first I thought it ignored all integers after the last empty list, but apparently that's not the case either.

For example, with list [[0, 5], [], [2], [3, 1]], I'd expect the flattened maximum to be 5, but it returns 3 instead.

Try it online. The first and last test cases are currently wrong (I'm expecting 5 and 1 instead of 3 and 0 respectively); the other three are correct.
Found in this 05AB1E answer of mine. - Try it online (expecting 1, but got 0).