Make FormSets objs overwritable

Author: jpsca

solution/form.py

@@ -202,8 +202,8 @@ def _init_data(self, data, obj, files):
 
         # Initialize form-sets
         for name, formset in self._sets.items():
-            obj_value = get_obj_value(obj, name)
             sclass = formset.__class__
+            objs = formset._objs or get_obj_value(obj, name)
             formset_name = '{prefix}{name}'.format(
                 prefix=self._prefix,
                 name=name.lower()
@@ -212,7 +212,7 @@ def _init_data(self, data, obj, files):
                 form_class=formset._form_class,
                 name=formset_name,
                 data=data,
-                objs=obj_value,
+                objs=objs,
                 files=files,
                 locale=self._locale,
                 tz=self._tz,

solution/formset.py

@@ -41,12 +41,12 @@ def __init__(
         self._create_new = bool(create_new)
         backref = backref or parent
         self._backref = backref
-
         self._forms = []
         self._errors = {}
         self._named_errors = {}
         self.missing_objs = []
         self.has_changed = False
+        self._objs = objs
 
         if (data or objs or files):
             self._init(data, objs, files)