[ONOS-7510] investigate branch checkout failure

Change-Id: I1a31b7506e72a139d3c0fbee905db11afbca89b6
diff --git a/jjb/OnosSystemTest/onos-test-pipeline.yaml b/jjb/OnosSystemTest/onos-test-pipeline.yaml
index 6f8b1e6..5d0f784 100644
--- a/jjb/OnosSystemTest/onos-test-pipeline.yaml
+++ b/jjb/OnosSystemTest/onos-test-pipeline.yaml
@@ -98,6 +98,11 @@
          default: "\"${{JAVA_OPTS:--Xms8G -Xmx8G}}\""
          description: 'ONOS cell JVM heap size setting.'
 
+      - string:
+         name: ONOSTag
+         default: ''
+         desciption: 'specific branch trying to checkout'
+
       - text:
          name: Tests
          default: |
@@ -254,7 +259,7 @@
 
       - string:
          name: Builds
-         deafult: '20'
+         default: '20'
          description: 'Builds to show in the graph.'
 
       - lf-infra-parameters: