QmlJS: Fix codemodel reset

The QML import paths weren't scanned for modules when the code model was
reset.

Task-number: QTCREATORBUG-24082
Change-Id: If818ebf4ef123529e5fe8de40e6b5d0154c84680
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@qt.io>

src/libs/qmljs/qmljsmodelmanagerinterface.cpp

@@ -1570,10 +1570,15 @@ void ModelManagerInterface::resetCodeModel()
         // reset the snapshot
         m_validSnapshot = Snapshot();
         m_newestSnapshot = Snapshot();
+        m_scannedPaths.clear();
     }
 
     // start a reparse thread
     updateSourceFiles(documents, false);
+
+    // rescan import directories
+    m_shouldScanImports = true;
+    updateImportPaths();
 }
 
 } // namespace QmlJS