[qmtest] FileContentsTest multiple substitutions?

[eichin at metacarta.com]

ahh, both mozilla and galeon give

> Error: pattern has no properties
> In http://127.0.0.1:xxxx/test/edit-test?id=ftest, Line 371

when attempting to change *any* of the substitution fields once there
is more than one present (so if you fill in one, create a second, your
changes to the first don't take either.)  Now to figure out how to
install "venkman" under debian...