Fix update-count warning

[codyrancher]

Summary

fixes #16196

Technical notes summary

Providing a default eliminates the warning. In the case we provide a noop default function.

Areas or cases that should be tested

The /home page shouldn't emit the warning anymore and a defail page should still show tab counts properly.

Areas which could experience regressions

See above

Checklist

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[momesgin]

the warning is gone, LGTM