fixed static "costume" type for stage backgrounds

HISTORY.md

@@ -6,11 +6,13 @@
 * **Notable Changes:**
 * **Notable Fixes:**
     * JSON encoding for nested lists
+    * static "costume" type for stage backgrounds
 * **Documentation Updates:**
 * **Translation Updates:**
 
 ### 2022-02-07
 * lists: fixed JSON encoding for nested lists
+* objects: fixed static "costume" type for stage backgrounds
 
 ### 2022-02-04
 * new dev version

snap.html

@@ -18,7 +18,7 @@
         <script src="src/widgets.js?version=2021-17-09"></script>
         <script src="src/blocks.js?version=2022-01-30"></script>
         <script src="src/threads.js?version=2022-01-31"></script>
-        <script src="src/objects.js?version=2022-01-28"></script>
+        <script src="src/objects.js?version=2022-02-07"></script>
         <script src="src/scenes.js?version=2021-11-24"></script>
         <script src="src/gui.js?version=2022-02-04"></script>
         <script src="src/paint.js?version=2021-07-05"></script>

src/objects.js

@@ -87,7 +87,7 @@ BlockVisibilityDialogMorph, CostumeIconMorph, SoundIconMorph*/
 
 /*jshint esversion: 6*/
 
-modules.objects = '2022-January-28';
+modules.objects = '2022-February-07';
 
 var SpriteMorph;
 var StageMorph;
@@ -1987,6 +1987,7 @@ SpriteMorph.prototype.fullCopy = function (forClone) {
             }
         });
         c.costumes = new List(arr);
+        c.costumes.type = 'costume';
         arr = [];
         this.sounds.asArray().forEach(sound => {
             var snd = forClone ? sound : sound.copy();
@@ -7934,6 +7935,7 @@ StageMorph.prototype.init = function (globals) {
     this.customBlocks = [];
     this.globalBlocks = [];
     this.costumes = new List();
+    this.costumes.type = 'costume';
     this.costume = null;
     this.sounds = new List();
     this.version = Date.now(); // for observers