Merge branch '15081-wrong-login-tab-ldap-frontend' into 'master'

Fixed Wrong Tab Selected When Loggin Fails And Multiple Login Tabs Exists

## What does this MR do?
Fixes issue: 15081 Wrong Tab Selected When Loggin Fails And Multiple Login Tabs Exists
This is done by saving into a cookie when the active tab changes and by always selecting that tab when the page is loaded.
## Are there points in the code the reviewer needs to double check?
No
## Why was this MR needed?
In order to fix the issue: 15081
## Screenshots (if relevant)

## Does this MR meet the acceptance criteria?

- [x] [Changelog entry](https://docs.gitlab.com/ce/development/changelog.html) added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if it does - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?


Closes #15081

See merge request !7314

1 files changed, 4 insertions, 0 deletions

diff --git a/changelogs/unreleased/15081-wrong-login-tab-ldap-frontend.yml b/changelogs/unreleased/15081-wrong-login-tab-ldap-frontend.yml
new file mode 100644
index 00000000000..19c76b5b437
--- /dev/null
+++ b/changelogs/unreleased/15081-wrong-login-tab-ldap-frontend.yml
@@ -0,0 +1,4 @@
+---
+title: Fix wrong tab selected when loggin fails and multiple login tabs exists
+merge_request: 7314
+author: Jacopo Beschi @jacopo-beschi