wxGUI: fix adding labels when element renamed (merge from trunk, https://trac.osgeo.org/grass/changeset/64100)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@64101 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_core/gselect.py

@@ -451,10 +451,10 @@ class TreeCtrlComboPopup(ListCtrlComboPopup):
                        'icons':'icon',
                        'icon':'icon',
                        'paint icon files':'icon',
-                       'paint/labels':'labels',
-                       'labels':'labels',
-                       'label':'labels',
-                       'paint label files':'labels',
+                       'paint/labels':'label',
+                       'labels':'label',
+                       'label':'label',
+                       'paint label files':'label',
                        'windows':'region',
                        'region':'region',
                        'region definition':'region',