Once again, disable session based client

src/com/owncloud/android/MainApp.java

@@ -55,7 +55,11 @@ public class MainApp extends Application {
         boolean isSamlAuth = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 
         OwnCloudClientManagerFactory.setUserAgent(getUserAgent());
-        OwnCloudClientManagerFactory.setDefaultPolicy(Policy.SINGLE_SESSION_PER_ACCOUNT);
+        if (isSamlAuth) {
+            OwnCloudClientManagerFactory.setDefaultPolicy(Policy.SINGLE_SESSION_PER_ACCOUNT);
+        } else {
+            OwnCloudClientManagerFactory.setDefaultPolicy(Policy.ALWAYS_NEW_CLIENT);
+        }
 
         // initialise thumbnails cache on background thread
         new ThumbnailsCacheManager.InitDiskCacheTask().execute();