MLV crash when popping stack item

[tmolitor-stud-tu]

MLV crashed when popping a stack item:

2024-03-24 20:07:24,080 [DEBUG  ] LogViewer.ui.main_window {MainThread} main_window.py:879: update combobox history with: 'threadID=='2166680''...
2024-03-24 20:07:24,492 [DEBUG  ] shared.ui.utils.helpers {MainThread} helpers.py:33: Got args: ([85, 255, 127],)
QLineEdit::setSelection: Invalid start position (-1)
2024-03-24 20:07:24,675 [ERROR  ] LogViewer.ui.main_window {MainThread} exceptions.py:14: Exception in thread/pyqt callback!
Traceback (most recent call last):
  File "/home/thilo/cvs/DebugTools/src/shared/utils/exceptions.py", line 12, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/home/thilo/cvs/DebugTools/src/LogViewer/ui/main_window.py", line 761, in popStack
    self.searchNext()
  File "/home/thilo/cvs/DebugTools/src/LogViewer/ui/main_window.py", line 415, in searchNext
    self._search(Search.next)
  File "/home/thilo/cvs/DebugTools/src/LogViewer/ui/main_window.py", line 427, in _search
    if self.uiWidget_listView.selectedIndexes()[0].row() != self.search.getPosition:
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
IndexError: list index out of range
2024-03-24 20:07:24,733 [ERROR  ] LogViewer.ui.main_window {MainThread} exceptions.py:15: Shutting down immediately due to exception!

Based on commit 53e341a