toggling "Show special symbols" doesn't affect existing copies

[750]

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Maccy Version (see 'About' window)

2.2.1

macOS Version

sonoma 14.5

Maccy Settings

{
    "KeyboardShortcuts_delete" = "{\\"carbonKeyCode\\":51,\\"carbonModifiers\\":2048}";
    "KeyboardShortcuts_pin" = "{\\"carbonKeyCode\\":35,\\"carbonModifiers\\":2048}";
    "KeyboardShortcuts_popup" = "{\\"carbonModifiers\\":768,\\"carbonKeyCode\\":8}";
    "LaunchAtLogin__hasMigrated" = 1;
    "NSStatusItem Preferred Position Item-0" = 409;
    "NSStatusItem Visible Item-1" = 0;
    "NSWindow Frame SUUpdateAlert" = "425 390 620 398 0 0 1470 919 ";
    "NSWindow Frame com.sindresorhus.Settings.FrameAutosaveName" = "380 331 510 473 0 0 1470 919 ";
    SUAutomaticallyUpdate = 0;
    SUEnableAutomaticChecks = 1;
    SUHasLaunchedBefore = 1;
    SULastCheckTime = "2024-12-06 20:33:22 +0000";
    SUSendProfileInfo = 0;
    SUUpdateGroupIdentifier = 412656639;
    avoidTakingFocus = 1;
    clearOnQuit = 1;
    clipboardCheckInterval = "0.01";
    enabledPasteboardTypes =     (
        "public.html",
        "public.tiff",
        "public.png",
        "public.rtf",
        "public.utf8-plain-text"
    );
    historySize = 998;
    ignoreEvents = 0;
    ignoredPasteboardTypes =     (
        "com.typeit4me.clipping",
        "de.petermaurer.TransientPasteboardType",
        "Pasteboard generator type",
        "com.agilebits.onepassword",
        "net.antelle.keeweb"
    );
    imageMaxHeight = 40;
    maxMenuItemLength = 30;
    migrations =     {
        "2020-04-25-allow-custom-ignored-types" = 1;
        "2020-06-19-use-keyboardshortcuts" = 1;
        "2020-09-01-ignore-keeweb" = 1;
        "2021-02-20-allow-to-customize-supported-types" = 1;
        "2021-06-28-add-title-to-history-item" = 1;
        "2021-10-16-remove-dynamic-pasteboard-types" = 1;
        "2022-08-01-rename-suppress-clear-alert" = 1;
        "2022-11-14-add-html-rtf-to-supported-types" = 1;
        "2023-01-22-add-regexp-search-mode" = 1;
        "2024-07-01-version-2" = 1;
    };
    pasteByDefault = 1;
    pinTo = bottom;
    popupPosition = lastPosition;
    popupScreen = 0;
    previewDelay = 100000;
    searchInNSSting = 0;
    searchMode = exact;
    searchVisibility = always;
    searchableCharsCount = 10000;
    showApplicationIcons = 1;
    showFooter = 1;
    showRecentCopyInMenuBar = 1;
    showSearch = 1;
    showSpecialSymbols = 1;
    showTitle = 0;
    sortBy = lastCopiedAt;
    suppressClearAlert = 1;
    windowPosition = "[0.46564625850340136,0.7714907508161044]";
    windowSize = "[569,301]";
}

Description

"Show special symbols" doesn't toggle for already existing items

Screen.Recording.2024-12-06.at.23.39.39.mov

(this is n.3 in #845 (comment))

Steps to Reproduce

No response

[p0deje]

Maybe that's related to Sonoma, but I cannot reproduce it in Sequoia 15.2.
Does it happen for all types of copies?