wxGUI: fix loading map layers using re

       (merge from devbr6, https://trac.osgeo.org/grass/changeset/34370)


git-svn-id: https://svn.osgeo.org/grass/grass/trunk@34372 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/gdialogs.py

@@ -749,8 +749,11 @@ class LoadMapLayersDialog(wx.Dialog):
 
         list = []
         for layer in self.map_layers:
-            if re.compile('^' + event.GetString()).search(layer):
-                list.append(layer)
+            try:
+                if re.compile('^' + event.GetString()).search(layer):
+                    list.append(layer)
+            except:
+                pass
 
         self.layers.Set(list)
         self.OnSelectAll(None)