Ensure that we don't mutate the underlying row object

opentech/apply/funds/templatetags/table_tags.py

+import copy
+
 from django import template
 
 register = template.Library()
@@ -5,5 +7,6 @@ register = template.Library()
 
 @register.filter
 def row_from_record(row, record):
+    row = copy.copy(row)
     row._record = record
     return row