wiredtiger/wiredtiger — comment on commit de920f9b10988bc76391de77eba06ff632468053
File: src/btree/rec_evict.c line 417
By keithbostic:

I think this test was entirely removed, and I don't think that's OK: if we are attempting to evict a page, and it has an in-memory page that's neither empty nor split, we can't merge it, and we have to return EBUSY.