ASSERT in qmlls

When opening the following code in Kate

import QtQuick

Item {
    property int foo: {}
} 

qmlls asserts with

ASSERT: "e.semanticScope() && e.semanticScope()->scopeType() == QQmlSA::ScopeType::QMLScope" in file /home/nico/workspace/qt6-dev/qtdeclarative/src/qmldom/qqmldomastcreator.cpp, line 3019

Current Qt dev branch, qtdeclarative 7729ed61a68380da65519e4a9f9edab89be06321