[Templates] - operator

[Rafiq Ismail (ADMIN)]

Hi.

We've just run into an odd situation where the '-' operator seems to
behave in a manner different to the '+' operator.

We are running tt2 v2.07.
What we have found is something like:
[% isone = 1 %]
.
.
.
[% iszero = isone-1 %]

Doesn't appear to work, whereas :

[% istwo = (isone)+1 %]

Does work.

The subraction was accomplished through:

[% iszero = isone - 1 %]

I'm assuming, without looking at the code, that this has something to do
with looking at -1 as a signed integer and overloading the subraction
operator.  The other disturbing things we discovered was that (array.1)-1
did not seem to work, thus defeating the whole point of using brackets.

Is this a feature or a bug?  If it is a bug, is there a patch?

Cheers,

Rafiq