Crash while viewing habits

[majorpeter]

Version: current master

Stacktrace:

/app/backend/dist/models/projectactivitycache.js:52
                issueSubject: issue.issue.subject,
                                          ^

TypeError: Cannot read properties of undefined (reading 'subject')
    at ProjectActivityCache.activity (/app/backend/dist/models/projectactivitycache.js:52:43)
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at async /app/backend/dist/controllers/habits.js:102:28
    at async Promise.all (index 3)
    at async /app/backend/dist/controllers/habits.js:96:26