FK.limit_choices_to doc says it's for admin, but works in ModelForm

[Vlada Macek]

Using limit_choices_to option on a ForeignKey field works for me in the ModelForm too.

I didn't test M2M field's limit_choices_to.

Therefore to me, the ​doc appears to be a bit misleading mentioning "admin" twice.

[Claude Paroz]

It appears that on that page, there are multiple references to admin as a synonym for ModelForm.

For example, "The admin represents this as an <input type="text">". Shouldn't this read as "The default form widget for this field is a TextInput."?

[stumbles]

Replace usage of 'admin' as a synonym for ModelForms.

[stumbles]

I've updated several places where "admin" is used as a synonym for automatically generated forms.

I was hoping that using :class:~django.forms.widgets.TextInput would give a hyperlink to the widget documentation, but it doesn't seem to. Happy to fix this if there's a better way.

[Tim Graham <timograham@…>]

In [13d47c3f338e1e9a5da943b97b5334c0523d2e2c]:

Fixed #18637 - Updated some documentation for aspects of models that are ModelForm specific, not admin specific.

Thanks Ben Sturmfels for the patch.

[Tim Graham <timograham@…>]

In [27c2ccc1ea0d08752a480aae30d48be6126d21ff]:

[1.4.x] Fixed #18637 - Updated some documentation for aspects of models that are ModelForm specific, not admin specific.

Thanks Ben Sturmfels for the patch.

Backport of 13d47c3f338e1e9a5da943b97b5334c0523d2e2c from master.