[umbrello] [Bug 456427] New: code import crash

https://bugs.kde.org/show_bug.cgi?id=456427

            Bug ID: 456427
           Summary: code import crash
           Product: umbrello
           Version: unspecified
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug
symbols.
See
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***
recently I study live555, then using umbrello5 to create uml graph.
but when I import source code, the umbrello will crash.

crash log output:
```/usr/include/c++/12.1.0/bits/unique_ptr.h:445: typename
std::add_lvalue_reference<_Tp>::type std::unique_ptr<_Tp, _Dp>::operator*()
const [with _Tp = InitDeclaratorAST; _Dp =
std::default_delete<InitDeclaratorAST>; typename
std::add_lvalue_reference<_Tp>::type = InitDeclaratorAST&]: Assertion 'get() !=
pointer()' failed.
Aborted (core dumped)
```
STEPS TO REPRODUCE
1. download live555 source code,
http://www.live555.com/liveMedia/public/live.2022.06.16.tar.gz
2. start umbrello5, select menu "Code --> Code importing wizard",
3.  select `live555/liveMedia/include/` directory, press button "start import"
4. the umbrello5 crash.

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma:  Linux justin 5.18.9-zen1-1-zen #1 ZEN SMP PREEMPT_DYNAMIC
Sat, 02 Jul 2022 21:03:08 +0000 x86_64 GNU/Linux
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version:  Qt6

ADDITIONAL INFORMATION

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