Comment 9 for bug 1847976

After working with reader-4 for some time I notice that the search history is not that rock-solid as in reader-3.
The search phrases are forgotten very rapidly.
Your suggestion to look for them in a json file is only working for viewer-3; (C:\Users\XXX\AppData\Roaming\calibre\gui.py.json); after some fiddling one can delete or ADD search-words.

As far as I have found viewer-4 stores in C:\Users\XXX\AppData\Roaming\calibre\viewer-webengine.json; where the words/phrases are not kept for a long time and editing is not working for a long time either.

Am I correct? And can you make the search history more stable?

Thanks!