Steps to reproduce:

1. Phorge at 1b5d2f83c3aa03dada5cbed4a18d341733348425
2. Go to http://phorge.localhost/transactions/editengine/maniphest.task/ and click the "Create Form" button.
3. Enter something in the Name field and click the Create New Form button.
4. Scroll down on resulting http://phorge.localhost/transactions/editengine/maniphest.task/view/21/ and see the timeline entry username created this object.
5. Select Edit Form Configuration, change the form Name, and click Save Changes.
6. Scroll down on resulting http://phorge.localhost/transactions/editengine/maniphest.task/view/21/ and see the timeline entry username renamed this form from someFormAgain to someForm.

Actual outcome:

object in step 4

Expected outcome:

form in step 4