wxGUI: fix GetLayerNameFromCmd()

	(merge https://trac.osgeo.org/grass/changeset/39500 from devbr6)


git-svn-id: https://svn.osgeo.org/grass/grass/trunk@39501 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/utils.py

@@ -102,7 +102,7 @@ def GetLayerNameFromCmd(dcmd, fullyQualified=False, param=None,
                 continue
             
             if p == param:
-                params.append((idx, p, v))
+                params = [(idx, p, v)]
                 break
             
             if p in ('map', 'input',