bug: Dashboard numbers don't always align with the entry filters.

[myieye]

Describe the bug

Dashboard numbers don't always align with the entry filters.

To Reproduce

The project for example: https://languageforge.org/projects/test-chris-02

The dashboard says there are:

• 5 entries with audio, but there are only 4.
• 15 entries with pictures, but there are only 12.

1. Navigate to the dashboard
2. Click on "Entries with Pictures"
3. Only 12 are found

Expected behavior
The numbers should match

Triage

The reason seems to be that there are empty fields. I verified this for both audio (empty field) and pictures (empty array):

[megahirt]

Really good find, @myieye . I suspected as much as I've seen the numbers be off when I was doing testing, but didn't dig into it like you did here. Thank you!