Fix: Escape property name when keying

The property name can contain `"` which would cause keyframing to
fail. By escaping it those properties can now be keyframed.

E.g. property names like `"test"` now properly receive keys.

Pull Request: https://projects.blender.org/blender/blender/pulls/119922

source/blender/editors/animation/CMakeLists.txt

@@ -10,6 +10,7 @@ set(INC
   ../../makesrna
   ../../sequencer
   ../../windowmanager
+  ../../../../extern/fmtlib/include
   # RNA_prototypes.h
   ${CMAKE_BINARY_DIR}/source/blender/makesrna
 )

source/blender/editors/animation/keyframing.cc

@@ -9,6 +9,8 @@
 #include <cstddef>
 #include <cstdio>
 
+#include <fmt/format.h>
+
 #include "MEM_guardedalloc.h"
 
 #include "BLI_blenlib.h"
@@ -298,9 +300,9 @@ static blender::Vector<std::string> construct_rna_paths(PointerRNA *ptr)
   if (insert_channel_flags & USER_ANIM_KEY_CHANNEL_CUSTOM_PROPERTIES) {
     if (properties) {
       LISTBASE_FOREACH (IDProperty *, prop, &properties->data.group) {
-        std::string name = prop->name;
-        std::string rna_path = "[\"" + name + "\"]";
-        paths.append(rna_path);
+        char name_escaped[MAX_IDPROP_NAME * 2];
+        BLI_str_escape(name_escaped, prop->name, sizeof(name_escaped));
+        paths.append(fmt::format("[\"{}\"]", name_escaped));
       }
     }
   }