Corrected placement of tooltips

src/tooltips.cpp

@@ -196,11 +196,14 @@ void Tooltip::show(bool disregard_drawn, const std::function<void()> &on_motion)
     int min_x = rect.get_x();
     int max_x = rect.get_x() + rect.get_width();
     int height = 0;
+    int max_height = 0;
     while(true) {
-      if(iter.ends_line()) {
       tooltip_text_view->get_iter_location(iter, rect);
+      max_height = std::max(max_height, rect.get_height());
+      if(iter.ends_line()) {
         max_x = std::max(max_x, rect.get_x() + rect.get_width());
-        height += rect.get_height();
+        height += max_height;
+        max_height = 0;
       }
       if(iter.is_end())
         break;