duplicate dummy variable

[dyc-emet]

Hi,
When using Module, if we have local variables in the returned expression, they are always the same. It seems that Module doesn't create new local variable names each time as it is supposed to. e.g.

symata 1> g(a_, b_) := Module([c], h(a, c) * h(c, b))

symata 1> g(a, b)
Out(1) = h(a,##c#360)*h(##c#360,b)

symata 2> g(a, b) * g(d, e)
Out(2) = h(a,##c#360)*h(d,##c#360)*h(##c#360,b)*h(##c#360,e)

As you can see, the dummy variable c is always replaced by ##c#360 instead of, for example, ##c#360 from calling g(a,b) and ##c#361 from calling g(d,e).

Is this a bug or did I misunderstand something?

p.s. I don't know how to use the name ##c#360 in the following calculation, it seems I have to somehow escape the # but I haven't figured out the correct way...

[jlapeyre]

Yes this is a bug. Maybe it's a regression [EDIT: not really]. It should be fixed and a test added.

[jlapeyre]

Module-local variables are Cleared rather than replaced by new variables. This must be part of the solution.

[jlapeyre]

p.s. I don't know how to use the name ##c#360 in the following calculation, it seems I have to somehow escape the # but I haven't figured out the correct way...

This problem is fixed in #164. But, the more serious problem will take more work.