Using a specific as-cast asserts and fails compilation

property var tmp4: (null as GOL_Object)

FAILED: .rcc/qmlcache/truc_Main_qml.cpp /home/icristalrope/asCastBug-build/.rcc/qmlcache/truc_Main_qml.cpp
cd /home/icristalrope/asCastBug-build && /usr/bin/cmake -E make_directory /home/icristalrope/asCastBug-build/.rcc/qmlcache && /home/icristalrope/qt6-build/qtbase/libexec/qmlcachegen --bare --resource-path /qt/qml/Truc/Main.qml -I /home/icristalrope/asCastBug-build -I /home/icristalrope/qt6-build/qtbase/./qml -i /home/icristalrope/asCastBug-build/Truc/qmldir --resource /home/icristalrope/asCastBug-build/.rcc/qmake_Truc.qrc --resource /home/icristalrope/asCastBug-build/.rcc/truc_raw_qml_0.qrc -o /home/icristalrope/asCastBug-build/.rcc/qmlcache/truc_Main_qml.cpp /home/icristalrope/asCastBug/Main.qml
ASSERT: "it != registers.end()" in file /home/icristalrope/qt6-build/qtbase/include/QtQmlCompiler/6.7.0/QtQmlCompiler/private/../../../../../../../qt6/qtdeclarative/src/qmlcompiler/qqmljscompilepass_p.h, line 97
Aborted
ninja: build stopped: subcommand failed. 

    property var tmp1: console.log((null as GOL_Object).i)
    property var tmp2: console.log((null as GOL_Object))
    property var tmp3: (undefined as GOL_Object)