-git submodule foreach git checkout -b "${BRANCH,,}" "origin/${BRANCH,,}"
+
+# TODO: Simplify once stable/nitrogen is no longer supported.
+for module in $(git submodule | awk '{ print $2 }')
+do
+ pushd "$module"
+ if [ "$GERRIT_BRANCH" == "stable/nitrogen" ] && [ "$module" == "yangtools" ]; then
+ git checkout -b "v1.2.x" "origin/v1.2.x"
+ else
+ git checkout -b "${BRANCH,,}" "origin/${BRANCH,,}"
+ fi
+ popd
+done
+
+# Setup Gerrit remove to ensure Change-Id gets set on commit.
+git config --global --add gitreview.username "jenkins-releng"
+git review -s
+git submodule foreach "git review -s"