make latest indexes visible

[jsteemann]

Scope & Purpose

Backport of #20941

make latest indexes visible when calling GET /_api/index?withHidden=true.
we need to wait here for the latest index information being present in the agency cache. if we don't wait, we risk not seeing a just-created index if the local agency cache has not fully caught up, and the supervision declares the just-created index ready.

This fixes spurious test errors such as

=== shell_client_3 ===
* Test "shell_client_3"
    [FAILED]  tests/js/client/shell/shell-index.js

      "testIndexProgressIsReported" failed: Error: at assertion #31: [ { "fields" : [ "_key" ], "id" : "c0l/0", "name" : "primary", "selectivityEstimate" : 1, "sparse" : false, "type" : "primary", "unique" : true } ]: (1) is not equal to (2)
(Error
    at Object.testIndexProgressIsReported (tests/js/client/shell/shell-index.js:98:9)
    at tests/js/client/shell/shell-index.js:167:11
    at tests/js/client/shell/shell-index.js:171:3
...    at Object.shellClient [as shell_client] (/work/ArangoDB/js/client/modules/@arangodb/testsuites/aql.js:226:79)
 - test failed

• 💩 Bugfix
• 🍕 New feature
• 🔥 Performance improvement
• 🔨 Refactoring/simplification

Checklist

• Tests
  • Regression tests
  • C++ Unit tests
  • integration tests
  • resilience tests
• 📖 CHANGELOG entry made
• 📚 documentation written (release notes, API changes, ...)
• Backports
  • Backport for 3.12.0: -
  • Backport for 3.11: -
  • Backport for 3.10: -

Related Information

• Docs PR:
• Enterprise PR:
• GitHub issue / Jira ticket:
• Design document: