Assertion failed on wxRound() when zooming

To reproduce:
- Fresh install of Kicad
- Create new project
- Open eeschema
- maximize window
- zoom in until you get assertion.

Zooming with mouse or toolbar results in the same. Assertion details below.

Platform: Fedora 20.
Linux xxxx 3.19.5-100.fc20.x86_64 #1 SMP Mon Apr 20 19:51:16 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Kicad version:
Product, nightly build 5634
from: https://copr.fedoraproject.org/coprs/mangelajo/kicad/

Application: kicad
Version: (after 2015-apr-15 BZR unknown)-product Debug build
wxWidgets: Version 3.0.2 (debug,wchar_t,compiler with C++ ABI 1002,GCC 4.8.3,wx containers,compatible with 2.8)
Platform: Linux 3.19.5-100.fc20.x86_64 x86_64, 64 bit, Little endian, wxGTK
Boost version: 1.54.0
         USE_WX_GRAPHICS_CONTEXT=OFF
         USE_WX_OVERLAY=OFF
         KICAD_SCRIPTING=ON
         KICAD_SCRIPTING_MODULES=ON
         KICAD_SCRIPTING_WXPYTHON=ON
         USE_FP_LIB_TABLE=HARD_CODED_ON
         BUILD_GITHUB_PLUGIN=ON

ASSERT INFO:
./include/wx/math.h(127): assert "x > INT_MIN - 0.5 && x < INT_MAX + 0.5" failed in wxRound(): argument out of supported range

BACKTRACE:
[1] wxDCImpl::LogicalToDeviceXRel(int) const
[2] wxWindowDCImpl::SetPen(wxPen const&)
[3] wxWindowDCImpl::ComputeScaleAndOrigin()
[4] wxAppConsoleBase::CallEventHandler(wxEvtHandler*, wxEventFunctor&, wxEvent&) const
[5] wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&)
[6] wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*)
[7] wxEvtHandler::TryHereOnly(wxEvent&)
[8] wxEvtHandler::ProcessEventLocally(wxEvent&)
[9] wxEvtHandler::ProcessEvent(wxEvent&)
[10] wxScrollHelperEvtHandler::ProcessEvent(wxEvent&)
[11] wxEvtHandler::SafelyProcessEvent(wxEvent&)
[12] wxWindow::GTKSendPaintEvents(_GdkRegion const*)
[13] g_closure_invoke
[14] g_signal_emit_valist
[15] g_signal_emit
[16] gtk_main_do_event
[17] gdk_window_process_updates
[18] wxWindow::Update()
[19] wxAppConsoleBase::CallEventHandler(wxEvtHandler*, wxEventFunctor&, wxEvent&) const
[20] wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&)
[21] wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*)
[22] wxEvtHandler::TryHereOnly(wxEvent&)
[23] wxEvtHandler::DoTryChain(wxEvent&)
[24] wxEvtHandler::ProcessEvent(wxEvent&)
[25] wxWindowBase::TryAfter(wxEvent&)
[26] wxAuiToolBar::OnLeftUp(wxMouseEvent&)
[27] wxAppConsoleBase::CallEventHandler(wxEvtHandler*, wxEventFunctor&, wxEvent&) const
[28] wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&)
[29] wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*)
[30] wxEvtHandler::TryHereOnly(wxEvent&)
[31] wxEvtHandler::ProcessEventLocally(wxEvent&)
[32] wxEvtHandler::ProcessEvent(wxEvent&)
[33] wxEvtHandler::SafelyProcessEvent(wxEvent&)
[34] g_closure_invoke
[35] g_signal_emit_valist
[36] g_signal_emit
[37] gtk_propagate_event
[38] gtk_main_do_event
[39] g_main_context_dispatch
[40] g_main_loop_run
[41] gtk_main
[42] wxGUIEventLoop::DoRun()
[43] wxEventLoopBase::Run()
[44] wxAppConsoleBase::MainLoop()
[45] int wxString::Printf<wchar_t const*>(wxFormatString const&, wchar_t const*)
[46] wxEntry(int&, wchar_t**)
[47] __libc_start_main
[48] _start