CMake sets “Generate Debug Symbols” - a Xcode build setting to wrong value

Question

1. I’m trying to generate Xcode project file of some libraries with CMake.
2. I want to generate dSYM file in all build config type.
3. I set values in all my CMakelists.txt as below: set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g") set(CMAKE_XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT "dwarf-with-dsym")
4. After CMake generate my xcodeproj file, I find out “Generate Debug Symbols” is set to true in Debug but set to false in Release build type enter image description here
5. I only find it happened in one library, and other libraries worked perfectly.
6. Does anyone have a clue?
7. I found relevant question and tried, but not valid: cmake-with-xcode-target-generate-debug-symbols-setting-ignored-for-release-conf

What I expect is as below image. Actually cmake works good with other library. enter image description here