Bug 386011

Authors are not kept separate under certain circumstances.
I have a book collection that has an additional field, "As By".
Authors are entered under their real name and the "As By" field is filled with the actual name as it appears on the book, real name, variation of real name or pseudonym, it's always filled.  I do this as some authors in different fields come up with the same name on their books even though they are different people.

To duplicate this bug, do this:
1. Create new book collection.
2. Add field "As By" as a text, formatted as name.
3. Enter first book: "Title 1" in "Title", "John Q. Author" in "Author" and "John Author" in "As By".
4. Enter second book: "Title 2" in "Title", "John Author" in "Author" and "John Author" in "As By".
5. Right-click on "Author, John Q." and filter by group.  Only "Title 1" will show up.
6. Right-click on "Author, John" and filter by group.  Both titles will show up even though only "Title 2" should.
   (It still shows that "Author, John" only has a single title in parentheses but 2 show up)

When you group by authors, it shows that each one only has one book (as it should) but filtering shows 2.
When you group by <people>, it shows 2 books in "Author, John" and 1 in "Author, John Q.".

More fun:
7. Add "Title 3" in "Title", "Johnny Author" in "Author" and "John Author" in "As By".
8. Right-click on "Author, John" and all 3 titles show up (even though it shows only 1 book by each author).

Still more:
9. Add "Title 4" in "Title", "Jonathan Author" in "Author" and "John Author" in "As By".
10. Right-click on "Author, John" and only the three titles with first names beginning with JOHN show up, the JONA does not.

Appears to be distinguishing by only the first 10 characters of a string somewhere (or 11 including a separator?).