QT3D fails to compile on macos when system assimp is installed

To reproduce

Install assimp via brew on macos.

Then, using a build with qtbase(compiled with conf flags -developer-build and -nomake tests) and qtdeclarative (configured with qt-configure-module), configure qt3d with qt-configure-module.

Result

The conf log should mention that System assimp and built-in assimp was found:

Qt 3D:
{{ Assimp ................................. yes}}
{{ System Assimp .......................... yes}}

but later throw the following error:

CMake Error at /Users/dskoland/qt/task/qt3d-assimp-compile-fail/yes-system-assimp/qtbase-build/lib/cmake/Qt6Core/Qt6CoreMacros.cmake:2131 (add_library):
{{ Target "AssimpSceneImportPlugin" links to target}}
{{ "WrapQt3DAssimp::WrapQt3DAssimp" but the target was not found. Perhaps a}}
{{ find_package() call is missing for an IMPORTED target, or an ALIAS target}}
{{ is missing?}}
Call Stack (most recent call first):
{{ /Users/dskoland/qt/task/qt3d-assimp-compile-fail/yes-system-assimp/qtbase-build/lib/cmake/Qt6Core/Qt6CoreMacros.cmake:1971 (_qt_internal_add_library)}}
{{ /Users/dskoland/qt/task/qt3d-assimp-compile-fail/qtbase/cmake/QtPluginHelpers.cmake:87 (qt6_add_plugin)}}
{{ src/plugins/sceneparsers/assimp/CMakeLists.txt:7 (qt_internal_add_plugin)}}

Workaround

Pass

-DFEATURE_qt3d_system_assimp=OFF

to cmake, and it will ignore system assimp and succeed in configuring