wxGUI: fix selection widget problem https://trac.osgeo.org/grass/ticket/2533 (merge from trunk, https://trac.osgeo.org/grass/changeset/63967)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@64008 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_core/forms.py

@@ -1273,7 +1273,9 @@ class CmdPanel(wx.Panel):
                                         flag = wx.ADJUST_MINSIZE | wx.BOTTOM | wx.LEFT | wx.RIGHT | wx.TOP | wx.ALIGN_CENTER_VERTICAL,
                                         border = 5)
                     elif prompt == 'group':
-                        selection.Bind(wx.EVT_TEXT, self.OnUpdateSelection)
+                        win = self.FindWindowById(p['wxId'][0])
+                        win.Bind(wx.EVT_TEXT, self.OnUpdateSelection)
+                        win.Bind(wx.EVT_TEXT, self.OnSetValue)
                         which_sizer.Add(item = selection, proportion = 0,
                                         flag = wx.ADJUST_MINSIZE | wx.BOTTOM | wx.LEFT | wx.RIGHT | wx.TOP | wx.ALIGN_CENTER_VERTICAL,
                                         border = 5)