mathed/InsetMathNest.cpp:1808: error: prototype for 'lyx::docstring lyx::MathCompletionList::data(size_t) const' does not match any in class 'lyx::MathCompletionList' mathed/InsetMathNest.h:31: error: candidate is: virtual const lyx::docstring& lyx::MathCompletionList::data(size_t) const mathed/InsetMathNest.cpp:1808: error: 'lyx::docstring lyx::MathCompletionList::data(size_t) const' cannot be overloaded mathed/InsetMathNest.h:31: error: with 'virtual const lyx::docstring& lyx::MathCompletionList::data(size_t) const'
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