[gnome-builder/gnome-builder-3-26] workbench: be nice to GPropertyAction

[Christian Hergert <chergert src gnome org>]

commit 7d9c8263fddccd5c9e1ec7a554d31d2437fc06a8
Author: Christian Hergert <chergert redhat com>
Date:   Tue Sep 26 02:11:39 2017 -0700

    workbench: be nice to GPropertyAction
    
    It really wants a valid string for the state of the action, so ensure
    that we have a non-NULL value here.

 libide/workbench/ide-workbench.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/libide/workbench/ide-workbench.c b/libide/workbench/ide-workbench.c
index 8f58714..ef0fde4 100644
--- a/libide/workbench/ide-workbench.c
+++ b/libide/workbench/ide-workbench.c
@@ -929,7 +929,9 @@ ide_workbench_get_visible_perspective_name (IdeWorkbench *self)
       return gtk_stack_get_visible_child_name (GTK_STACK (parent));
     }
 
-  return NULL;
+  /* Return a valid string to be nice to GPropertyAction */
+
+  return "";
 }
 
 void