fix PHP error while reloading branches

public_html/deployment/classes/vcs.git.class.php

@@ -453,6 +453,7 @@ class vcs implements iVcs
                 ||
                 isset($this->_aRemoteBranches[$sBranch]) && !$sVerifyRevision
             )
+            && isset($this->_aRemoteBranches[$sBranch]['message'])
         ) {
             // it is up to date - doing nothing
             $this->log(__FUNCTION__ . " return cached data");