sharing broken in collabora online when opening document via deck app

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Describe the bug
When opening a document (odt, xlsx,...) via the attachment tab in a card the share button in Collabora office seems to be doing nothing. When taking a look at the console the following error can be observed:

Uncaught (in promise) Error: Cannot open sidebar because the active folder or view is not set.
v sidebar.ts:43
a pinia.mjs:1399
open index.mjs:614
share FilesAppIntegration.js:136
share Office.vue:386
postMessageHandler Office.vue:517
handlePostMessage postMessage.tsx:74
handlePostMessage postMessage.tsx:68
e postMessage.tsx:12
sidebar.ts:43:19
a pinia.mjs:1404
open index.mjs:614
share FilesAppIntegration.js:136
InterpretGeneratorResume self-hosted:1312
AsyncFunctionNext self-hosted:780
(Async: async)
share Office.vue:386
postMessageHandler Office.vue:517
handlePostMessage postMessage.tsx:74
forEach self-hosted:145
handlePostMessage postMessage.tsx:68
e postMessage.tsx:12

To Reproduce
Steps to reproduce the behavior:

1. Create document in Files app
2. Go to Deck app
3. Create card in Deck board
4. Attach document to card
5. open card via deck board
6. press share button in collabora
7. observe nothing visible happening

Expected behavior
The regular sharing sidebar opening

Screenshots

Client details:

• OS:
• Browser:
• Version:
• Device:

No errors have been found.

Uncaught (in promise) Error: Cannot open sidebar because the active folder or view is not set.
    v sidebar.ts:43
    a pinia.mjs:1399
    open index.mjs:614
    share FilesAppIntegration.js:136
    share Office.vue:386
    postMessageHandler Office.vue:517
    handlePostMessage postMessage.tsx:74
    handlePostMessage postMessage.tsx:68
    e postMessage.tsx:12
sidebar.ts:43:19
    a pinia.mjs:1404
    open index.mjs:614
    share FilesAppIntegration.js:136
    InterpretGeneratorResume self-hosted:1312
    AsyncFunctionNext self-hosted:780
    (Async: async)
    share Office.vue:386
    postMessageHandler Office.vue:517
    handlePostMessage postMessage.tsx:74
    forEach self-hosted:145
    handlePostMessage postMessage.tsx:68
    e postMessage.tsx:12

Start with the Collabora sharing flow shown in Office.vue and FilesAppIntegration.js, then trace the postMessage handling in postMessage.tsx and the sidebar failure in sidebar.ts. Reproduce by opening an attached document from a Deck card and pressing Share; done means the regular sharing sidebar opens without the active-folder or view error.