I’ve been using Kicad 5 with the symbols and footprints from Kicad 4 for quite a while. Today I decided to upgrade those to 5 as well, by deleting my fp-lib-table file and picking the default setup (see I had KiCad 4 installed previosly. Now i updated to v5. Now i have some problems with the library setup).
While that worked, I realized that upgrading my project still meant recreating the layout (not literally, but the amount of work might be the same).
So I restored my old fp-lib-table, and while Kicad now shows the old footprints in the Assign Footprints window, the symbols still belong to Kicad 5.
What additional steps do I need to perform to get Kicad 4 symbols back?