message: Fix switch on unitialized memory bug in BeginColumns (that I introduced)
diff: @@ -10417,13 +10417,13 @@ bool ImGui::BeginColumns(const char* id, int columns_count, ImGuiColumnsFlags fl
  const ImGuiID column_id = window->DC.ColumnsSetId + ImGuiID(column_index);
  KeepAliveID(column_id);
  const float default_t = column_index / (float)window->DC.ColumnsCount;
  - float t = window->DC.StateStorage->GetFloat(column_id, default_t);
  + float t = window->DC.StateStorage->GetFloat(column_id, FLT_MAX);
  - if ((column_index == 0) && (t == default_t) && !window->DC.StateStorage->GetVoidPtr(column_id))
  + if (t == FLT_MAX)
  {
  - // Return true if we're initializing this column for the first time ever.
  - inited = true;
  + t = default_t;
  window->DC.StateStorage->SetFloat(column_id, t);
  + inited |= (column_index == 0);
  }
  if (!(window->DC.ColumnsFlags & ImGuiColumnsFlags_NoForceWithinWindow))
  