Fuzz: "==5859== ERROR: libFuzzer: timeout after 1564 seconds" (ubuntu-latest)

The fuzz-testing workflow has detected a bug.

Auto-Minimized Fuzzing Input That Triggers the Bug: Click this line.
Note: If the input is multi-line then the end-of-line characters '
' (0x0A) and '
' (0x0D)
may affect the reproducibility of the bug. If you fail to repro the bug with the input shown below
then you may want to go to the workflow that reported this GitHub bug,
download the artifact, and extract the file with the exact minimized input.

```qs
(Input minimization failed, see the workflow logs and artifacts)
```

The branch/commit the bug has been found in: Click.
If the developers fail to repro the bug in the latest main then the branch/commit info below can help them to make sure
that they are using the correct way to repro. If the bug is reproducible in the branch/commit below, but not in latest main,
then the bug is likely fixed already or is not in the main branch.

```log
Branch: * main

commit bab23b9cdb47e8f853731a619eea0cbfe15cb3a2
Author: Dhairya Patel <124895699+HABER7789@users.noreply.github.com>
Date: Mon Jul 20 09:15:08 2026 -0700

fix deprecated assign update expression for nested expressions (#3482)

## Fix deprecated assign-update quick fix for nested expressions

The `DeprecatedAssignUpdateExpr` quick fix flattens nested `w/=` updates
by matching index source text. That's unsafe for impure indices: the
flattened form evaluates the index fewer times than the original,
changing behavior.

Now it only merges levels where the shared indices are pure, otherwise
falling back to the safe single-level rewrite. The assigned value is
never required to be pure (it's evaluated once either way).

Example (`NextIndex()` returns a different value each call):

```text
a w/= NextIndex() <- (a[NextIndex()] w/ 1 <- 7)

before → a[NextIndex()][1] = 7 // runs NextIndex() once, wrong
after → a[NextIndex()] = a[NextIndex()] w/ 1 <- 7 // both calls preserved
```

Pure cases still flatten fully, e.g. `a w/= 0 <- (a[0] w/ 1 <- 7)` →
`a[0][1] = 7`.

---------

Co-authored-by: HABER7789
```

**Other Info**

- [**Workflow**](https://github.com/microsoft/qdk/actions/runs/29759947330) (contains the run artifacts).
- **Workflow Agent System Info:** `ubuntu-latest: Linux runnervm3jd5f 6.17.0-1020-azure #20~24.04.1-Ubuntu SMP Fri Jun 19 20:09:14 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux`.