Did Executioner sword get a hidden nerf?

Just got around to testing executioner sword. I could have sworn that the heavy attacks had 20% additional crit chance on heavy attacks, but the armory mod now shows that it has 10% additional crit chance. Was this a hidden or unintentional nerf, or did I miss an earlier patch note somewhere? I know that uppercut attacks were lowered to 10%; was exe sword mistakenly included in this change?

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