Assert (without crash) after doing very long nothing with c::b, followed by Find in files over workspace files and then double-clicking one of the results):
ASSERT INFO:
../include/wx/dynarray.h(838): assert "uiIndex < m_nCount" failed in Item().
BACKTRACE:
[1] wxGenericTreeCtrl::CalculateLevel(wxGenericTreeItem*, wxDC&, int, int&)
[2] wxGenericTreeCtrl::CalculatePositions()
[3] wxGenericTreeCtrl::DoDirtyProcessing()
[4] wxGenericTreeCtrl::OnInternalIdle()
[5] wxWindowBase::SendIdleEvents(wxIdleEvent&)
[6] wxWindowBase::SendIdleEvents(wxIdleEvent&)
[7] wxWindowBase::SendIdleEvents(wxIdleEvent&)
[8] wxWindowBase::SendIdleEvents(wxIdleEvent&)
[9] wxWindowBase::SendIdleEvents(wxIdleEvent&)
[10] wxWindowBase::SendIdleEvents(wxIdleEvent&)
[11] wxFrame::SendIdleEvents(wxIdleEvent&)
[12] wxAppBase::ProcessIdle()
[13] wxApp::DoIdle()
[14] g_main_context_dispatch
[15] g_main_loop_run
[16] gtk_main
[17] wxGUIEventLoop::DoRun()
[18] wxEventLoopBase::Run()
[19] wxAppConsoleBase::MainLoop()
[20] CodeBlocksApp::OnRun() /tmp/buildd/codeblocks-13.12svn10621/src/src/app.cpp:852
[21] wxEntry(int&, wchar_t**)
[22] main /tmp/buildd/codeblocks-13.12svn10621/src/src/app.cpp:322
[23] __libc_start_main
Build: Dec 10 2015, 22:09:58 - wx3.0.2 (Linux, unicode) - 64 bit
On Debian stable.
edit: Got the same assert with same callstack later on when switching betwen files by clicking a tab. So it's maybe related to bringing some file to the front in the editor. Also not just getting it once but maybe 5 times in a row.