Thumbnail Service and Upload: thumbnails now refresh when new content is uploaded, content mime is not reset to binary when new content is checked in

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@10145 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

config/alfresco/templates/webscripts/org/alfresco/repository/upload/upload.post.js

@@ -135,6 +135,9 @@ function main()
       }
       // Update the working copy
       workingCopy.properties.content.write(content);
+      // Reset working copy mimetype and encoding
+      workingCopy.properties.content.guessMimetype(filename);
+      workingCopy.properties.content.encoding = "UTF-8";
       // check it in again, but with a version history note and as minor or major version increment
       workingCopy = workingCopy.checkin(description, majorVersion);
       model.document = workingCopy;