--template get() seems to be broken in Hg v3.3.2 and other versions

[Lawrence Stewart]

Hi all,

Pretty sure this used to work. Broken for others too or am I doing
something daft?

> hg --version | head -1
Mercurial Distributed SCM (version 3.3.2)

> hg log -r . --template "{get(extras, 'source')}\n"
hg: parse error: get() expects a dict as first argument

Someone tested for me on v2.9.1 where it is similarly broken, and
another person on v3.4 and claims it works there, though I don't see any
mention in the v3.3.3 or v3.4 changelog that this issue was explicitly
fixed, which makes me wonder what's going on.

Cheers,
Lawrence