Some assets are not shown in project folders

[floradanna]

Describe the bug In project folders, some assets such as Workflows and Collections are not shown in the Unsorted item folder or in any other folder. Also, some assets are misplaced: a sample is in Models folder, but I cannot reproduce it.

To Reproduce Steps to reproduce the behavior:

1. Go to 'https://testing.sysmo-db.org/single_pages/125'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior A consistent behaviour. Either all assets listed in Related items should be shown in appropriate project folders or we don't show project folders at all.

Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: iOS
• Browser safari
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context Add any other context about the problem here.