[Bug] Adding a custom-field on an open case requires a reload, otherwise field is not visible

[crackytsi]

Request Type

Bug

Work Environment

Question	Answer
OS version (server)	Debian, Ubuntu, CentOS, RedHat, ...
OS version (client)	XP, Seven, 10, Ubuntu, ...
TheHive version / git hash	3.x, hash of the commit
Package Type	RPM, DEB, Docker, Binary, From source
Browser type & version	If applicable

Problem Description

When adding a custom field to a case the field is not directly visible. Instead an existing (the last?) custom-field is shown twice.
Evertything is correctly stored, so performing a page reload shows it correctly.

Steps to Reproduce

1. Create a case with 2 custom-fields (by template)
2. add a 3rd custom-field in the open case
3. You can see the newly added custom field twice
4. Reload the page, now everythig is fine :)

Possible Solutions

Show the added field instead of the newly added one. Hopefully it is a race-condition of storage...