OOPS searching because % is not quoted

[Diogo Matsubara]

As seen in OOPS-1406H1587 an IndexError: tuple index out of range is raised when the search term for project groups is a %

Steps to reproduce:
1. Open https://staging.launchpad.net/projectgroups
2. Fill in search project groups a percentage sign: %
3. Click Search project groups
4. OOPS-1406H1587 IndexError: tuple index out of range

Another example, OOPS-1600B1922 with a different exception: ProgrammingError: argument formats can't be mixed

[Curtis Hovey (sinzui)]

The oops that affect blueprints, bugs, and answers are from spammers that started their daily attacked in November of 2009. One proposed fix is to not report oopses caused by bots/windowsnt since we know they are not users.

[Curtis Hovey (sinzui)]

The common fix will be something like
    if text:
           text = text.replace("%", "%%")

[Curtis Hovey (sinzui)]

OOPS-1601D2626 shows that translations also has the problem,

[Данило Шеган (danilo)]

Translations problem is bug 388997 and doesn't seem related: it's caused by linkified URLs in parenthesis which bots (GoogleBot in this case) then follow.