Headers in CMake INTERFACE library are sometimes treated as "out of project" files

I have a CMakeLists.txt with the follwing contents:

file(GLOB_RECURSE HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/include/*.h)
add_library(awalgo INTERFACE ${HEADERS})
target_include_directories(awalgo INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/include)

All files from that library are shown in the Project View, however, when I open some of them in the editor it says "Warning: This file is not part of any project."

If I replace the GLOB_RECURSE with a explicit list of files - nothing changes for those files.

Steps to reproduce:

1. git clone git@github.com:absurdworlds/awlib.git
2. open the project in Qt Creator
3. configure the project with -DAW_ENABLE_GRAPHICS:BOOL=OFF
4. open archive/include/aw/archive/archive_base.h
5. you should see something like this