Bug#825979: meld: Can no longer read from named pipes

[Kyanos]

Package: meld
Version: 3.16.0-1
Severity: wishlist

Dear Maintainer,

Since the upgrade to 3.16.0, I cannot compare text read from pipes, such
as those created from process substitution. When I try to use one, Meld
says:

> There was a problem opening the file "/dev/fd/63"
> Not a regular file

I have used process substitution for such things as:

Comparing two gzip'ed text files:
$ meld <(gunzip -c file1.txt.gz) <(gunzip -c file2.txt.gz)

Comparing a Vim buffer to the file on disk:
:w !meld % <(cat)

(In the second example, I cannot use ":w !meld % -" because Meld does
not recognize "-" as standard input.)

If restoring this ability is infeasible, I will understand. Thank you
for your consideration.

Kyanos

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing'), (300, 'oldstable-updates'), (300,
'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.5.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages meld depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.26.0-1
ii  gir1.2-gtksource-3.0                         3.20.3-1
ii  libcanberra-gtk3-module                      0.30-3
ii  libgtk-3-0                                   3.20.4-1
ii  libgtksourceview-3.0-1                       3.20.3-1
ii  patch                                        2.7.5-1
ii  python-gi                                    3.20.1-1
ii  python-gi-cairo                              3.20.1-1
pn  python:any                                   <none>

Versions of packages meld recommends:
pn  yelp  <none>

meld suggests no packages.

-- no debconf information