Set filter value renderer when setting enum for grid field

tailbone/grids/core.py

@@ -206,6 +206,8 @@ class Grid(object):
         if enum:
             self.enums[key] = enum
             self.set_type(key, 'enum')
+            if key in self.filters:
+                self.filters[key].set_value_renderer(gridfilters.EnumValueRenderer(enum))
         else:
             self.enums.pop(key, None)