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oleibman
f8d994b6e7
Investigating issue #1622, I found that its extremely complicated formula, which had been leading to an incorrect result, now led to an exception. I am able to fix the exception; unfortunately, I am no closer to resolving the original issue. So I'll apply the baby step while continuing to investigate. Function POWER had changed from untyped args to a defined set of types. The set of types was determined according to the doc block, but that was incomplete - it had neglected to include `null` and `bool`. This PR corrects the function prototype and the doc block, and adds the missing tests for those conditions.