Correct parentheses error

This logic was clearly written incorrectly, based on the comment
and context clues. It's possibly the cause of b/407714441, based
on log diffs from working and not working cases.

Bug: 407714441
Test: Manually ran through shade CUJs
Flag: EXEMPT bug fix
Change-Id: I1e26db59bcdbe90d5e0e8ea0cc6b1f597856d9a8