GNATS & GNATSWEB: ticket dependency

[Visintin Sabrina]

I would like first of all to tell you that I like the software very much. 
What I could not find is a feature (I'm wondering if it exist, or if it is
foreseen in a future implementation) that we need: dependency between
tickets.

Let's say we have 3 PR's similar, of 3 different users; 
all of them are blocked due to a different PR, let's say PR/6

What we would like is something like this:

in the first 3 the status should be "blocked depending on" resolution of
PR/6, 
but later on, when PR/6 is closed, then the other 3 should become open
again automatically....

Can you help?
Thank you very much for your kind collaboration

Sabrina
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