Deploy Boards doesn't show up when using grouped environments

Summary

When using grouped environment names deploy boards doesn't show up. By grouped i mean backend/staging + backend/production for example. Whe using classic environment names everything works as expected.

Steps to reproduce

Just create few grouped environments.

What is the current bug behavior?

When using grouped environment names deploy boards doesn't show up.

What is the expected correct behavior?

Expecting to work the same way as non-grouped environments.

Relevant logs and/or screenshots

Results of GitLab environment info

Expand for output related to GitLab environment info

System information
System:		Ubuntu 20.04
Proxy:		no
Current User:	git
Using RVM:	no
Ruby Version:	2.7.2p137
Gem Version:	3.1.4
Bundler Version:2.1.4
Rake Version:	13.0.3
Redis Version:	5.0.9
Git Version:	2.29.0
Sidekiq Version:5.2.9
Go Version:	unknown

GitLab information
Version:	13.8.0-ee
Revision:	1ae10d09692
Directory:	/opt/gitlab/embedded/service/gitlab-rails
DB Adapter:	PostgreSQL
DB Version:	12.4
URL:		https://gitlab.carvago.com
HTTP Clone URL:	https://gitlab.carvago.com/some-group/some-project.git
SSH Clone URL:	git@gitlab.carvago.com:some-group/some-project.git
Elasticsearch:	no
Geo:		no
Using LDAP:	no
Using Omniauth:	yes
Omniauth Providers: bitbucket, bitbucket, bitbucket

GitLab Shell
Version:	13.15.0
Repository storage paths:
- default: 	/var/opt/gitlab/git-data/repositories
GitLab Shell path:		/opt/gitlab/embedded/service/gitlab-shell
Git:		/opt/gitlab/embedded/bin/git

Results of GitLab application Check

Expand for output related to the GitLab application check

Checking GitLab subtasks ...
Checking GitLab Shell ...
GitLab Shell: ... GitLab Shell version >= 13.15.0 ? ... OK (13.15.0)
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Internal API available: OK
Redis available via internal API: OK
gitlab-shell self-check successful
Checking GitLab Shell ... Finished
Checking Gitaly ...
Gitaly: ... default ... OK
Checking Gitaly ... Finished
Checking Sidekiq ...
Sidekiq: ... Running? ... yes
Number of Sidekiq processes ... 1
Checking Sidekiq ... Finished
Checking Incoming Email ...
Incoming Email: ... Reply by email is disabled in config/gitlab.yml
Checking Incoming Email ... Finished
Checking LDAP ...
LDAP: ... LDAP is disabled in config/gitlab.yml
Checking LDAP ... Finished
Checking GitLab App ...
Git configured correctly? ... yes
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config up to date? ... yes
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory exists? ... yes
Uploads directory has correct permissions? ... yes
Uploads directory tmp has correct permissions? ... yes
Init script exists? ... skipped (omnibus-gitlab has no init script)
Init script up-to-date? ... skipped (omnibus-gitlab has no init script)
Projects have namespace: ...
128/1 ... yes
7/2 ... yes
7/3 ... yes
7/4 ... yes
136/5 ... yes
7/6 ... yes
7/7 ... yes
7/8 ... yes
136/10 ... yes
7/11 ... yes
6/13 ... yes
6/14 ... yes
6/15 ... yes
6/16 ... yes
6/17 ... yes
6/18 ... yes
128/19 ... yes
5/20 ... yes
5/21 ... yes
5/22 ... yes
5/23 ... yes
5/24 ... yes
5/25 ... yes
129/26 ... yes
5/27 ... yes
129/28 ... yes
5/29 ... yes
5/30 ... yes
10/31 ... yes
10/32 ... yes
10/33 ... yes
7/34 ... yes
21/35 ... yes
60/37 ... yes
60/38 ... yes
129/39 ... yes
136/40 ... yes
5/41 ... yes
43/42 ... yes
60/43 ... yes
6/44 ... yes
6/45 ... yes
7/46 ... yes
5/47 ... yes
76/49 ... yes
76/50 ... yes
76/51 ... yes
6/52 ... yes
52/53 ... yes
5/54 ... yes
41/55 ... yes
52/56 ... yes
10/57 ... yes
6/58 ... yes
6/59 ... yes
5/60 ... yes
43/61 ... yes
60/62 ... yes
93/63 ... yes
86/64 ... yes
127/65 ... yes
5/66 ... yes
6/67 ... yes
32/68 ... yes
10/69 ... yes
5/70 ... yes
10/71 ... yes
133/72 ... yes
Redis version >= 4.0.0? ... yes
Ruby version >= 2.7.2 ? ... yes (2.7.2)
Git version >= 2.29.0 ? ... yes (2.29.0)
Git user has default SSH configuration? ... yes
Active users: ... 120
Is authorized keys file accessible? ... yes
GitLab configured to store new projects in hashed storage? ... yes
All projects are in hashed storage? ... yes
Elasticsearch version 7.x (6.4 - 6.x deprecated to be removed in 13.8)? ... skipped (elasticsearch is disabled)
Checking GitLab App ... Finished
Checking GitLab subtasks ... Finished

Possible fixes