Generate md5s for uploaded assets

Without this, we were erroneously setting uploaded assets as clean, so they wouldn't be saved when uploaded from an .sb2/3 file.

src/serialization/deserialize-assets.js

@@ -43,8 +43,14 @@ const deserializeSound = function (sound, runtime, zip, assetFileName) {
         storage.AssetType.Sound,
         dataFormat,
         data,
-        sound.assetId
-    ));
+        null,
+        true
+    ))
+        .then(asset => {
+            sound.asset = asset;
+            sound.assetId = asset.assetId;
+            sound.md5 = `${asset.assetId}.${asset.dataFormat}`;
+        });
 };
 
 /**
@@ -80,9 +86,12 @@ const deserializeCostume = function (costume, runtime, zip, assetFileName, textL
             costume.asset.assetType,
             costume.asset.dataFormat,
             new Uint8Array(Object.keys(costume.asset.data).map(key => costume.asset.data[key])),
-            costume.asset.assetId
+            null,
+            true
         )).then(asset => {
             costume.asset = asset;
+            costume.assetId = asset.assetId;
+            costume.md5 = `${asset.assetId}.${asset.dataFormat}`;
         });
     }
 
@@ -140,10 +149,13 @@ const deserializeCostume = function (costume, runtime, zip, assetFileName, textL
                 // TODO eventually we want to map non-png's to their actual file types?
                 costumeFormat,
                 data,
-                assetId
+                null,
+                true
             ))
             .then(asset => {
                 costume.asset = asset;
+                costume.assetId = asset.assetId;
+                costume.md5 = `${asset.assetId}.${asset.dataFormat}`;
             })
     ]);
 };

src/serialization/sb2.js

@@ -497,10 +497,8 @@ const parseScratchObject = function (object, runtime, extensions, topLevel, zip)
             // followed by the file ext
             const assetFileName = `${soundSource.soundID}.${ext}`;
             soundPromises.push(deserializeSound(sound, runtime, zip, assetFileName)
-                .then(asset => {
-                    sound.asset = asset;
-                    return loadSound(sound, runtime, sprite);
-                }));
+                .then(() => loadSound(sound, runtime, sprite))
+            );
         }
     }
 

src/serialization/sb3.js

@@ -905,10 +905,7 @@ const parseScratchObject = function (object, runtime, extensions, zip) {
         // any translation that needs to happen will happen in the process
         // of building up the costume object into an sb3 format
         return deserializeSound(sound, runtime, zip)
-            .then(asset => {
-                sound.asset = asset;
-                return loadSound(sound, runtime, sprite);
-            });
+            .then(() => loadSound(sound, runtime, sprite));
         // Only attempt to load the sound after the deserialization
         // process has been completed.
     });