findRaw() returns page ID with `pid` prefix for page reference fields in a table field.

[adrianbj]

Short description of the issue

If you have a table field with a PR field as one of the subfields, you will get a string like:

instead of an array like:

Expected behavior

An clean array of PIDs (without the pid prefix) should be returned

Actual behavior

See screenshot above

Steps to reproduce the issue

1. Create a Profields Table field with a page reference subfield
2. Make a $pages->findRaw() call to find pages with this table field.