deploy: cdfb130fa6

api/macros/json_brace_init_copy_semantics.md

@@ -27,9 +27,13 @@ The default value is `0` (disabled — existing behavior is preserved).
     json j{obj};
     ```
 
-    creates a single-element **array** `[{"key":"value"}]` instead of a copy of `obj`. This behavior is
-    compiler-dependent for older compilers (GCC wrapped, Clang did not), but starting from Clang 20, both compilers
-    behave the same way.
+    creates a single-element **array** `[{"key":"value"}]` instead of a copy of `obj`. For this constructor, the
+    behavior was compiler-dependent for older compilers (GCC wrapped, Clang did not), but starting from Clang 20, both
+    compilers behave the same way.
+
+    The calls `#!cpp arr.push_back({obj})` and `#!cpp arr += {obj}` are still compiler-dependent without the macro,
+    even with Clang 20 and later: GCC converts `{obj}` to a single-element array and appends that array, whereas Clang
+    appends a copy of `obj`. With the macro defined to `1`, both compilers append a copy of `obj`.
 
     Enabling this macro opts into copy/move semantics for this case
     (see [#5074](https://github.com/nlohmann/json/issues/5074)).