Ten Smart Collection bugs/changes

Question

After upgrading the catalog from v2 to v3 I have compared the smart collection counters for every SC and found a lot of differences. So, you may need to check your own SCs or rewrite some rules. Here's a list of bugs and changes in logic I was able to find.
"Rating is not X" does not include unrated photos
Be it a bug or change in logic, but LR2 would include unrated photos in this case. This has also been discussed here: http://forums.adobe.com/message/2876677 .
"Rating is 0" includes all photos
This is definitely a bug, as now you cannot catch your unrated images without tricks (e.g. "None: rating >= 1").
+ modifiers reversed role
In LR2 "+abc" meant "starts with abc" and "abc+" meant "ends with abc". In LR3 these have reversed. More than that, in LR2 one could use "+abc+" to identify the word "abc"; in LR3 this doesn't work anymore, since "contains +abc+" is equivalent to "contains abc".
! modifier doesn't work
the ! (not) modifier just doesn't work here. The smart collection just hangs. This also causes other SCs to not update their counts after start-up. Try "keyword contains !abc".
Dash ("-") is now treated as a word delimiter
In LR2 "abc-xyz" was treated as a complete word. LR3 treats it as two words: "abc" and "xyz". Not a bug, but some SCs will have to be rewritten.
"Caption is empty" doesn't work for some images
LR3 catalog has a new table in its schema: AgLibraryIPTC. This table appears to be a sort of a cache for captions and copyrights (not to confuse with copyright status). This particular SC rule seems to search in that table in instead of full xmp. However, if an image didn't contain neither a caption nor a copyright in LR2 catalog, after conversion it won't be added to the AgLibraryIPTC table. This, in its turn, will cause the "Caption is empty" rule to fail even though a photo does indeed NOT have a caption.
"Title contains t" includes all image from library
Now this is a really strange one, as I don't have any titles on any of my photos. I tried every other letter and digit, but only "t" fails the check. "Title doesn't contain t" also fails, not including any photo at all, although none of the photos have any title. Again, "t" is the only wrong letter. "T" is often used as an alias in sql joins... could it be the problem?
"Title contains <space>" hangs
Just like the "!" modifier above, this rule hangs and blocks other "healthy" SCs to not recount themselves after start-up. You need to type in a single space character into the criteria filed.
"Label Text" is case sensitive
It has been so in LR2 too, but I think a user should be freed from the need to think about case-sensitivity.
"All searchable metadata" doesn't search in copyright.
Note that "All searchable Text" DOES search there, but isn't the copyright field metadata? Note that LR didn't search in copyright with both rules, so this is a kind of improvement, after all.

Answer 1

Just for your information:
"Rating is not X" does not include unrated photos Fixed in 3.2 RC.
"Rating is 0" includes all photos somewhat fixed, but with issues
+ modifiers reversed role fixed, but with issues
! modifier doesn't work Fixed in 3.2 RC.
Dash ("-") is now treated as a word delimiter Fixed in 3.2 RC.
"Caption is empty" doesn't work for some images Fixed in 3.2 RC.
"Title contains t" includes all image from library Fixed in 3.2 RC.
"Title contains <space>" hangs not fixed
"All searchable metadata" doesn't search in copyright. not fixed, but might not be a bug
"Label Text" is case sensitive not fixed, but might not be a bug