Merge branch 'bug40578' into 'main'

new mode that only fetches bridge descs as needed

See merge request tpo/core/tor!688

changes/ticket40918

@@ -1,3 +0,0 @@
-  o Minor bugfix (relay, sandbox):
-    - Disable a sandbox unit test that is failing on Debian Sid breaking our
-      nightly packages. Fixes bug 40918; bugfix on 0.3.5.1-alpha.

src/test/test_sandbox.c

@@ -377,19 +377,9 @@ struct testcase_t sandbox_tests[] = {
 #else
   SANDBOX_TEST_IN_SANDBOX(open_filename),
   SANDBOX_TEST_IN_SANDBOX(openat_filename),
+  SANDBOX_TEST_IN_SANDBOX(opendir_dirname),
 #endif /* defined(ENABLE_FRAGILE_HARDENING) */
 
-  /* Ok why... Quick answer is #40918. This has been failing on Debian SID
-   * making us unable to have nightly packages which is a problem as we have
-   * several relay operators using them and actively reporting us issues with
-   * them. This test fails due to the sandbox denying it.
-   *
-   * We are deprecating C-tor slowly and honestly, the Sandbox feature has
-   * always been a source of pain and unhappiness. Disable this as finding why,
-   * fixing it and hoping it doesn't come back will mostly be a waste of our
-   * time at this point. */
-  SANDBOX_TEST_SKIPPED(opendir_dirname),
-
   SANDBOX_TEST_IN_SANDBOX(chmod_filename),
   SANDBOX_TEST_IN_SANDBOX(chown_filename),
   SANDBOX_TEST_IN_SANDBOX(rename_filename),