sehmaschine/django-grappelli — pull request #449 by nebstrebor (2014-02-08 21:02:36+00:00)
Title: Fix for #448 

Fix for #448 "Sortable inline behavior causing django formset save to raise ValueError: invalid literal for int() with base 10: ''"

RemoveButtonHandler changed to only re-index forms with indexes higher than the removed form.

If you end up going with this fix instead of rolling your own, then you would also want to pull it into master/2.5.x