clang-format: extra space not deleted in `> >`, depending on content in other lines

[bersbersbers]

clang-format version 21.1.1

x.h:

template<typename T>
concept X = requires(T & v, std::format_context ctx) { std::formatter<std::remove_cvref_t<T> >().format(v, ctx); };

y.h:

template<typename T>
concept X = requires(T & v, std::format_context ctx) { std::formatter<std::remove_cvref_t<T> >().format(v, ctx); };

struct X<Y<Z1, Z2>> {};

clang-format x.h --style="{BasedOnStyle: Google, ColumnLimit: 120}":

template <typename T>
concept X = requires(T& v, std::format_context ctx) { std::formatter<std::remove_cvref_t<T> >().format(v, ctx); };

clang-format y.h --style="{BasedOnStyle: Google, ColumnLimit: 120}":

template <typename T>
concept X = requires(T& v, std::format_context ctx) { std::formatter<std::remove_cvref_t<T>>().format(v, ctx); };

struct X<Y<Z1, Z2>> {};

Note how the extra space between > > is deleted only in y.h (which is as I would expect it) but not in x.h (where I would have expected the space to be removed).

[llvmbot]

@llvm/issue-subscribers-clang-format

Author: None (bersbersbers)

``` clang-format version 21.1.1 ```

x.h:

template<typename T>
concept X = requires(T & v, std::format_context ctx) { std::formatter<std::remove_cvref_t<T> >().format(v, ctx); };

y.h:

template<typename T>
concept X = requires(T & v, std::format_context ctx) { std::formatter<std::remove_cvref_t<T> >().format(v, ctx); };

struct X<Y<Z1, Z2>> {};

clang-format x.h --style="{BasedOnStyle: Google, ColumnLimit: 120}":

template <typename T>
concept X = requires(T& v, std::format_context ctx) { std::formatter<std::remove_cvref_t<T> >().format(v, ctx); };

clang-format y.h --style="{BasedOnStyle: Google, ColumnLimit: 120}":

template <typename T>
concept X = requires(T& v, std::format_context ctx) { std::formatter<std::remove_cvref_t<T>>().format(v, ctx); };

struct X<Y<Z1, Z2>> {};

Note how the extra space between > > is deleted only in y.h (which is as I would expect it) but not in x.h (where I would have expected the space to be removed).