Maintaining saved search id across search execution.

[dennisoelkers]

Description

Motivation and Context

Before this change, the saved search id which was selected on the search page was reset after the next search execution. This prevented any updates to saved searches, as updating the query took effect only after the next search execution.

With this change, a selected saved search id is added as a hidden field to the search query form, so it is maintained across search executions. This allows the user to select a saved search, modify the query and update the saved search afterwards.

Fixes #2285.

Needs to be merged into master as well.

How Has This Been Tested?

Manual testing.

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[edmundoa]

LGTM 👍