!3032 修复:复合实体炸开和编辑实体时,子实体材质丢失问题

src/DatabaseServices/Entity/CompositeEntity.ts

@@ -69,8 +69,11 @@ export abstract class CompositeEntity extends Entity
     {
         return this.Entitys.map(e =>
         {
-            let cloneE = e.Clone();
-            cloneE.Material = e.Material;
+            if (!e.Db && this._db)
+                e.SetDatabase(this._db);
+            let cloneE = e.Clone(false);
+            if (!(cloneE instanceof CompositeEntity))
+                cloneE.Material = e.Material;
             return cloneE.ApplyMatrix(this.OCSNoClone);
         });
     }

src/DatabaseServices/Entity/Extrude.ts

@@ -126,7 +126,7 @@ export class ExtrudeSolid extends Entity
 
     set Material(materialId: ObjectId<PhysicalMaterialRecord>)
     {
-        let oldMaterial = this.Material ?? this._db?.DefaultMaterial.objectId;
+        let oldMaterial = this.Material ?? this._db?.DefaultMaterial?.objectId;
         super.Material = materialId;
 
         let isf_old = Boolean(oldMaterial?.Object?.IsFull);

src/UI/Components/RightPanel/CompositeMetalsPanel.tsx

@@ -177,7 +177,8 @@ export class CompositeMatalPanel extends React.Component<ICompositeMatalPanelPan
                 let ents: Entity[] = []; //用于缩放相机
                 for (let en of composite.Entitys)
                 {
-                    let newEnt = en.Clone();
+                    en.SetDatabase(composite.Db);
+                    let newEnt = en.Clone(false);
                     app.Database.ModelSpace.Append(newEnt);
                     oldNewMap.set(en, newEnt);
                     ents.push(newEnt);