Milestone dropdown does not stay selected

What does this MR do?

It resolve the regression when Upcoming and No Milestone is selected from Milestone dropdown in issue filter form

Are there points in the code the reviewer needs to double check?

May be not

Why was this MR needed?

This MR closes issue #23713 (closed) regression

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• CHANGELOG entry added
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #23713 (closed)

Marked the task CHANGELOG entry added as completed

Added 1 commit:

• 79f113e6 - changelog entry added

Compare with previous version

Added 1 commit:

• fd739a60 - adds test for dropdown selected text for each context

Compare with previous version

Marked the task Documentation created/updated as completed

Marked the task API support added as completed

Marked the task API support added as incomplete

Marked the task API support added as completed

Marked the task Added for this feature/bug as completed

Marked the task Conform by the merge request performance guides as completed

Marked the task Conform by the merge request performance guides as incomplete

Marked the task Conform by the style guides as completed

Unmarked this merge request as a Work In Progress

Reassigned to @fatihacet

@nmrony Conflicts 💥

Reassigned to @nmrony

Added 73 commits:

• fd739a60...e4990b8c - 72 commits from branch master
• f7b36f53 - Merge branch 'master' into 23713-milestone-dropdown-not-selected

Compare with previous version

Marked the task Branch has no merge conflicts with master (if it does - rebase it please) as completed

Marked the task Conform by the merge request performance guides as completed

Reassigned to @chriscool

Reassigned to @fatihacet

@fatihacet conflict is resolved ;)

Added 1 commit:

• 9122ad64 - resolves rubocop complaints for old hash syntax

Compare with previous version

Added 1 commit:

• 9122ad64 - resolves rubocop complaints for old hash syntax

Compare with previous version

@fatihacet going to give this to @rspeicher to review.

@jschatz1 Sounds good to me. Assigned to @rspeicher.

Reassigned to @rspeicher

Milestone changed to %8.14

@nmrony Couple things.

Reassigned to @nmrony

Added 1 commit:

• 7a5f792d - removes calling unnecessary escape function

Compare with previous version

Added 111 commits:

• 9122ad64...b216d9bf - 107 commits from branch master
• 993453c5 - fixes milestone dropdown not select issue
• e95e9a40 - changelog entry added
• 1a7ebbe8 - adds merge request number
• 66dd9096 - adds test for milestone dropdown selected text

Compare with previous version

Added 1 commit:

• 43559586 - adds changelog entry in 8.13.2 and removed redundant changelog sections

Compare with previous version

Added 1 commit:

• 305c2524 - fixes milestone dropdown not select issue

Compare with previous version

Marked the task Squashed related commits together as completed

Milestone changed to %8.13

Resolved all discussions

Mentioned in issue #23827 (closed)

Marked the task All builds are passing as completed

Reassigned to @fatihacet

Reassigned to @rspeicher

Added ~149423 label

Added 34 commits:

• 305c2524...b328c788 - 33 commits from branch master
• e45a9f5b - fixes milestone dropdown not select issue

Compare with previous version

Milestone changed to %8.14

Mentioned in issue #23101 (closed)

Status changed to merged

Mentioned in commit 1c491e54

@rspeicher Wrong milestone, too bad, it could have gone into 8.13.4 or 8.13.5! :(

Milestone changed to %8.13

Mentioned in issue #24326 (closed)

Picked into 8-13-stable, will go into 8.13.6.

Removed ~149423 label

Mentioned in commit 52c7286a