What about attachment 10674 ("This test case silently returns the wrong answer"), with the pattern "^(11+)\\1+$|^1?$" and the string "1111111111111"?
Should it be regarded as part of Bug#17356 or another bug? This case seems quite different from Bug#10844 and Bug#17356. Unless the intent is to group all the bugs about regexp involving backreferences giving a wrong answer[*] (in which case Bug#10844 and Bug#17356 should be regarded as duplicates to each other), I think that this should be a new bug.
What about attachment 10674 ("This test case silently returns the wrong answer"), with the pattern "^(11+)\\1+$|^1?$" and the string "1111111111111"?
Should it be regarded as part of Bug#17356 or another bug? This case seems quite different from Bug#10844 and Bug#17356. Unless the intent is to group all the bugs about regexp involving backreferences giving a wrong answer[*] (in which case Bug#10844 and Bug#17356 should be regarded as duplicates to each other), I think that this should be a new bug.
[*] as opposed to a crash like in this bug 11053.