Error message whe uploading a document

[LukasKM]

• [ x] I have searched the issues of this repository and believe that this is not a duplicate.

Description 😯

When trying to upload a document, error message pops up saying: workflowitem.update failed: failed to get organizations: failed to get user: not found user xxxxxxxx.

How to reproduce 🕹

Assign a group to the workflow item.
upload a document to the WF item.

Your Environment 🌎

Tech	Version
Frontend	v2.2.1
API	v2.2.1
Blockchain	v1.?.?
Export-Service	v1.?.?
Email-Service	v1.?.?
Storage-Service	v2.2.1

[SamuelPull]

Not only 2.2.1, but also current main is affected.

NOTE: groups with permissions is "reviewers" int this case:

trubudget-operation-alpha-api-1 | {"level":50,"time":1698410329337,"hostname":"bc63d7d71a73","name":"Trubudget-Api","reqId":"req-10a","err":{"type":"VError","message":"workflowitem.update failed: failed to get organizations: failed to get user: Not found: user reviewers","stack":"VError: workflowitem.update failed: failed to get organizations: failed to get user: Not found: user reviewers\n at /home/node/dist/workflowitem_update.js:148:27\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)","jse_shortmsg":"workflowitem.update failed","jse_cause":{"type":"VError","message":"failed to get organizations: failed to get user: Not found: user reviewers","stack":"VError: failed to get organizations: failed to get user: Not found: user reviewers\n at Object.updateWorkflowitem (/home/node/dist/service/workflowitem_update.js:99:28)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)","jse_shortmsg":"failed to get organizations","jse_cause":{"type":"VError","message":"failed to get user: Not found: user reviewers","stack":"VError: failed to get user: Not found: user reviewers\n at getOrganizations (/home/node/dist/service/workflowitem_update.js:122:24)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async Object.updateWorkflowitem (/home/node/dist/service/workflowitem_update.js:97:39)","jse_shortmsg":"failed to get user","jse_cause":{"type":"NotFound","message":"Not found: user reviewers","stack":"NotFound: Not found: user reviewers\n at Object.getUser (/home/node/dist/service/domain/organization/user_query.js:28:16)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async getOrganizations (/home/node/dist/service/workflowitem_update.js:120:26)\n at async Object.updateWorkflowitem (/home/node/dist/service/workflowitem_update.js:97:39)","ctx":{"requestId":"req-10a","source":"http"},"entityType":"user","entityId":"reviewers","name":"NotFound"},"jse_info":{},"name":"VError"},"jse_info":{},"name":"VError"},"jse_info":{},"name":"VError"},"message":"Error while updating workflowitem"}