Markdown widget’s not added in admin

Markdown widget’s media i.e. javascript and stylesheets are not getting added in admin after explicitly defining form_overrides in Django 1.10

`class Entry(models.Model):
...
body = MarkdownField()
....

from django_markdown.widgets import AdminMarkdownWidget
from django_markdown.models import MarkdownField

class EntryAdmin(admin.ModelAdmin):
formfield_overrides = {MarkdownField: {'widget': AdminMarkdownWidget}}`
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Reproduce the issue with Django 1.10 using the Entry model, MarkdownField, AdminMarkdownWidget, and the shown formfield_overrides configuration. Inspect how the Django admin includes the widget’s media, then verify that the Markdown JavaScript and stylesheets are loaded when the override is explicitly defined.

Written by the indexing model from the issue text.