Upload current branch to studio/aosp when releasing

Change-Id: Ia1686007f23945997c46d342bdb1542fa669e23d
diff --git a/tools/r8_release.py b/tools/r8_release.py
index 0e32525..b60c2de 100755
--- a/tools/r8_release.py
+++ b/tools/r8_release.py
@@ -193,7 +193,8 @@
       # Don't upload if requested not to, or if changes are not committed due
       # to --use-existing-work-branch
       if not options.no_upload and not options.use_existing_work_branch:
-        process = subprocess.Popen(['repo', 'upload', '.', '--verify'],
+        process = subprocess.Popen(['repo', 'upload', '.', '--verify',
+                                    '--current-branch'],
                                    stdin=subprocess.PIPE)
         return process.communicate(input=b'y\n')[0]