IP losses interface assignment when edited trough an interface

[benjaminwaas]

Environment

• Python version: python 3.6.7
• NetBox version: netbox 2.6.7

Hello, The IP will lose its interface assignment when you edit it through a interface of a device.

steps to reproduce the issue:

• Go to device, e.g. /dcim/devices//
• Click on the interface name e.g. eth0; this takes you to /dcim/interfaces//
• On this page is a list of IP addresses. Click one one of them; this takes you to /ipam/ip-addresses//edit/?interface=&return_url=

I have send this question to the mailing list and they told me this could be the fix:

"I think the interface is blank because "interface=" in the query string in the generated link. If I manually change it to "interface=" and refresh then it's fine."

What did you expect to happen?
IP keeps its interface assigment.

What happened instead?
IP loses its interface assignment

[kobayashi]

I can reproduce this issue v2.6.7. The link should be fixed.