Entity links are not reloaded when switching between elements

Found while looking into #1006 (closed), same root cause:

1. Open any element that has some related EntityLinks
2. Either:
   • Use the children tree to switch to another element
   • Click on a parent in the header to load a parent element, if you have already previously loaded this element without pressing F5
   • Click on the ➡ button in the header, then ⬅, then ➡ again
3. Watch as the entity links of the first element are still visible
4. Cry