bug fix in display of focus path, using class name if no title

Author: ddooley

lib/AppContext.js

@@ -1171,7 +1171,7 @@ export default class AppContext {
       class_name = stack.pop(); // pop class_name
       if (class_name in done)
         continue;
-      const class_title = schema.classes[class_name].title;
+      const class_label = schema.classes[class_name].title || schema.classes[class_name].name;
       const dependent = this.dependent_rows.get(class_name);
       let key_string = '';
       let tooltip = '';
@@ -1183,8 +1183,8 @@ export default class AppContext {
         key_string = value + (key_string ? ', ' : '') + key_string; 
         tooltip = key + (tooltip ? ', ' : '') + tooltip;
       });
-      let tooltip_text = `<span class="tooltipytext">${class_title} [ ${tooltip} ]</span>`;
-      done[class_name] = `<b>${class_title}</b>&nbsp;<span class="tooltipy">[${key_string}]${tooltip_text}</span> `;
+      let tooltip_text = `<span class="tooltipytext">${class_label} [ ${tooltip} ]</span>`;
+      done[class_name] = `<b>${class_label}</b>&nbsp;<span class="tooltipy">[${key_string}]${tooltip_text}</span> `;
 
       // SEVERAL parents are possible - need them all displayed.
       let parents = Object.keys(this.relations[class_name].parent);