Nested mixin variable redefinition behavior in LESS 4.x
Goal: Clarify whether a variable redefined inside an inner mixin retains its new value after the inner mixin finishes and influences subsequent invocations of the outer mixin in LESS 4.x. Context: LESS 4.x follows lexical scoping for nested mixins, but it is unclear if a variable reassigned in the inner scope leaks outward or persists across calls, especiall
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