`//src/test/shell/integration/focus_test` fails on Bazel 9

### Description of the bug:

Specifically https://github.com/bazelbuild/bazel/blob/ce6bdd119d0938d1a4e692ea23adf63f3e7fa762/src/test/shell/integration/focus_test.sh#L481

The test can be reduced to the below for a minimal repro:

```sh
bazel build //${pkg}:g || fail "expected to succeed"
bazel info || fail "expected to succeed"
bazel build //${pkg}:g || fail "expected to succeed"
```

@mai93 showed that removing these lines fixes the test:

https://github.com/bazelbuild/bazel/blob/ce6bdd119d0938d1a4e692ea23adf63f3e7fa762/src/main/java/com/google/devtools/build/lib/runtime/BlazeCommandDispatcher.java#L671-L680

Even with those lines removed, reproducing at the command line shows strange behavior:

```sh
$ mkdir testapp
$ cat > testapp/BUILD < testapp/in.sh < g.blazerc <

Start with src/test/shell/integration/focus_test.sh around line 481 and reproduce the three-command sequence on Bazel 9 using the provided minimal workspace and g.blazerc. Then inspect BlazeCommandDispatcher.java around lines 671-680 and compare the clean --expunge and shutdown paths. Done means the integration test and minimal reproduction no longer fail without relying on unexplained behavior.

Written by the indexing model from the issue text.