Can't use parentheses as expected in filter expressions

[mazameli]

This was in both master and in the 0.39.0.1 jar.

I was trying to create a simple (if goofy) custom filter expression in the notebook which used parentheses to clarify the order in which I wanted the different logical bits to be evaluated. But I hit an error message: Expected closing parenthesis but found 'OR'

Here's the expression: ([ID] > 2 OR [Subtotal] = 100) and [Tax] < 4

My assumption is that parentheses are pretty vital for cases like this, and I validated with @ariya that this is a valid expression that MB should accept.

[ariya]

This is fixed with PR #15802.