IGV fails to properly update the properties view for a selected node when it changes between two graphs.

Example in attached properties_not_updated.xml:
1. Should open graph "1. Before Peeling" with 208 OpaqueTemplateAssertionPredicate shown.
2. Select 208 OpaqueTemplateAssertionPredicate to display "Properties" view on the right side.
3. Check "dump_spec" entry: loop_idx=172
4. Open next graph "2. After Loop Peeling".
5. "dump_spec" is unchanged.
6. Select a different node, for example 209 RangeCheck.
7. Select 208 OpaqueTemplateAssertionPredicate again.
8. "dump_spec" now shows the correct entry: loop_idx=172 #useless