[template-glib] template: break out of iterator if expand fails

[Christian Hergert <chergert src gnome org>]

commit 88eea2ffb97eabfe5e970b6d5294abac863d32d5
Author: Christian Hergert <chergert redhat com>
Date:   Tue Aug 9 14:29:43 2016 -0700

    template: break out of iterator if expand fails
    
    If a descendant fails during expansion, short circuit the loop.

 src/tmpl-template.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/tmpl-template.c b/src/tmpl-template.c
index e5ac490..5ff2bb0 100644
--- a/src/tmpl-template.c
+++ b/src/tmpl-template.c
@@ -395,6 +395,9 @@ tmpl_template_expand_visitor (TmplNode *node,
               TMPL_CLEAR_VALUE (&value);
 
               tmpl_node_visit_children (node, tmpl_template_expand_visitor, state);
+
+              if (state->result == FALSE)
+                break;
             }
 
           state->scope = old_scope;