Bug#832113: apt: "Hash sum mismatch" since apt(1.2.14, 1.3~pre2) behind proxy => mixed-up deb filenames

[nice sw123 <nicesw123@gmail.com>]

If I comment out proxy settings...

> # Acquire::http::Pipeline-Depth 0;
> # Acquire::https::Pipeline-Depth 0;
> # Acquire::http::No-Cache true;
> # Acquire::https::No-Cache true;

... then I sometimes get a message:
Automatically disabled Acquire::http::PipelineDepth due to incorrect
response from server/proxy. (man 5 apt.conf).

See
https://github.com/Debian/apt/blob/cc0a4/methods/server.cc#L642

Is the parameter
Acquire::http::PipelineDepth or
Acquire::http::Pipeline-Depth
??