It wasn't accidental. It's right there in G's 07-17 patch notes:
Code:
Ethiopia:
UA: removed +1 faith on SR
UB: culture mod now 25% (was 33%), faith yield now +2 (was +3)
G didn't update the UA text though, and some players pointed out that the UA says it gives +1

to SRs, but doesn't.
So G either forgot that was an intentional change and, in his confusion, restored the +1

on SRs rather than change the text, or he decided he didn't like dropping the +1

on SRs after all and reverted it.
Either way, +1

on SRs is back:
Code:
INSERT INTO Trait_YieldChangesStrategicResources
(TraitType, YieldType, Yield)
VALUES
('TRAIT_BONUS_AGAINST_TECH', 'YIELD_FAITH', 1);