Fix metadata existence check

Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/main/java/com/owncloud/android/operations/UploadFileOperation.java

@@ -441,6 +441,7 @@ public class UploadFileOperation extends SyncOperation {
         }
     }
 
+    // TODO REFACTOR
     @SuppressLint("AndroidLintUseSparseArrays") // gson cannot handle sparse arrays easily, therefore use hashmap
     private RemoteOperationResult encryptedUpload(OwnCloudClient client, OCFile parentFile) {
         RemoteOperationResult result = null;
@@ -489,13 +490,18 @@ public class UploadFileOperation extends SyncOperation {
 //                                                   mContext);
 
             Object object = EncryptionUtils.downloadFolderMetadata(parentFile, client, mContext, user);
+            if (object != null) {
+                if (object instanceof DecryptedFolderMetadataFileV1) {
+                    if (((DecryptedFolderMetadataFileV1) object).getMetadata() != null) {
+                        metadataExists = true;
+                    }
+                }
+            }
 
             if (CapabilityUtils.getCapability(mContext).getEndToEndEncryptionApiVersion().compareTo(E2EVersion.V2_0) >= 0) {
                 if (object == null) {
                     // TODO return error
                     return new RemoteOperationResult(new IllegalStateException("Metadata does not exist"));
-                } else {
-                    metadataExists = true;
                 }
             } else {
                 // v1 is allowed to be null, thus create it
@@ -512,7 +518,6 @@ public class UploadFileOperation extends SyncOperation {
                 }
 
                 object = metadata;
-                metadataExists = true;
             }
 
             // todo fail if no metadata
@@ -696,7 +701,6 @@ public class UploadFileOperation extends SyncOperation {
                         serializedFolderMetadata = EncryptionUtils.serializeJSON(encryptedFolderMetadata);
                     }
 
-                    // FIXME after first failed upload folder stay locked, uploadMetadata throws UploadException for encrypted folder
                     // upload metadata
                     EncryptionUtils.uploadMetadata(parentFile,
                                                    serializedFolderMetadata,