[gnome-text-editor] searchbar: keep regex text synchronized

[Christian Hergert <chergert src gnome org>]

commit b65009586f512701a7dd26b5d0d8f0e9fb16ea5d
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jan 5 11:09:11 2022 -0800

    searchbar: keep regex text synchronized
    
    Just a typo from a long time ago, showing it's head now.

 src/editor-search-bar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/editor-search-bar.c b/src/editor-search-bar.c
index afdd099..dfdb34b 100644
--- a/src/editor-search-bar.c
+++ b/src/editor-search-bar.c
@@ -223,7 +223,7 @@ text_to_search_text (GBinding     *binding,
   const gchar *str = g_value_get_string (from_value);
 
   if (!str || gtk_source_search_settings_get_regex_enabled (self->settings))
-    g_value_set_string (to_value, NULL);
+    g_value_set_string (to_value, str);
   else
     g_value_take_string (to_value, gtk_source_utils_unescape_search_text (str));