Enable deploying from tag 2019.2.26

Change-Id: I086b1479dcfdece93dfba749229b83c6401486bc
diff --git a/jobs/global.yaml b/jobs/global.yaml
index c5425ce..b5195ca 100755
--- a/jobs/global.yaml
+++ b/jobs/global.yaml
@@ -12,6 +12,6 @@
       </font></h1>
     current-version: 2019.2.26
     previous-version: 2019.2.25
-    disabled-proposed: false
-    disabled-2019-2-0: true
-    upgrade-to-tag: false
+    disabled-proposed: true
+    disabled-2019-2-0: false
+    upgrade-to-tag: true