E-book viewer: removed search strings are still kept in viewer-webengine.json

[etc205]

1. Open the main calibre program.
2. Double-click on "Quick Start Guide" to open it in E-book viewer.
3. Press Ctrl+f to open the viewer's Search pane.
4. Type "abc123"(no quotes) in the Search input field and press Enter. A warning window saying "No matches were found for: abc123" pops up. Close the warning window.
5. Right-click on the Search input field, a context menu shows up. Click on "Clear search history".
6. Close the E-book viewer.
7. Click on "Preferences -> Searching -> Clear search histories" in the main calibre program.
8. Close the main calibre program.

%APPDATA%/calibre/viewer-webengine.json still contains "abc123", in this piece:

  "saved-search-settings": {
    "abc123": {
      "case_sensitive": false,
      "mode": "normal"
    }
  },

Calibre version: 5.20,
OS: Windows 10 Home 1803.

[Kovid Goyal (kovid)]

The viewer and calibre are independent. You want to clear the viewer's
search history, right click on the search field and choose "Clear search
history"

 status invalid

[Kovid Goyal (kovid)]

Fixed in branch master. The fix will be in the next release. calibre is usually released every alternate Friday.

 status fixreleased

[etc205 (etc205)]

> You want to clear the viewer's search history, right click on the search field and choose "Clear search history"

I did, at step 5.

> The viewer and calibre are independent.

I think there is a dependency: The tooltip of calibre's "Preferences -> Searching -> Clear search histories" button (step 7) says: "Clear search histories from all over calibre. Including the book list, E-book viewer, fetch news dialog, etc.". And clicking on that button clears, among other things, the viewer's search history. It just stays in viewer-webengine.json.