[Rpm-maint] [rpm-software-management/rpm] Segmentation fault when a recursive macro contains %[expression] (Issue #3197)

[Miro Hrončok]

**Describe the bug**

This works as expected:

```
$ rpm --define 'aaa %aaa' --eval '%aaa'
error: Too many levels of recursion in macro expansion. It is likely caused by recursive macro declaration.
```

This crashes:

```
$ rpm --define 'aaa %[%aaa]' --eval '%aaa'
Segmentation fault (core dumped)
```

**To Reproduce**
Run the command above.


**Expected behavior**
An error should happen, not a crash.

**Output**
See above.

**Environment**
 - OS / Distribution: Fedora 39, 41
 - Version rpm-4.19.1.1-1.fc39.x86_64, rpm-4.19.92-2.fc41.x86_64

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