Code folding fails on QVersionNumber::It

GIVEN qversionnumber.h opened in qtbase/44876fb45e702c2554fca98ed19af57feb1c0511

WHEN Trying to code-fold the QVersionNumber::It nested class

THEN It stops folding at the unrelated #else in the first private: section, cf. blue bar in the attached screen shot:

EXPECTED The whole It class is folded.