Bug#901593: Getting a traceback when saving and closing window

[Laurent Bigonville]

Package: meld
Version: 3.18.0-6
Severity: normal

Hi,

When modifying a document and the closing the window (modify, click
close button, click save), the window is not closing and I get the
following traceback:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/meld/filediff.py", line 1559, in file_saved_cb
    self.on_delete_event()
  File "/usr/lib/python3/dist-packages/meld/filediff.py", line 842, in on_delete_event
    del self._cached_match
AttributeError: _cached_match

Clicking the close button of the window manager again generate the same
traceback a 2nd time

Kind regards,

Laurent Bigonville

-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.16.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_BE.UTF-8, LC_CTYPE=fr_BE.UTF-8 (charmap=UTF-8), LANGUAGE=fr_BE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: SELinux: enabled - Mode: Permissive - Policy name: refpolicy

Versions of packages meld depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.28.0-2
ii  gir1.2-gtksource-3.0                         3.24.7-2
ii  libcanberra-gtk3-module                      0.30-6
ii  libgtk-3-0                                   3.22.30-1
ii  libgtksourceview-3.0-1                       3.24.7-2
ii  patch                                        2.7.6-2
ii  python3                                      3.6.5-3
ii  python3-gi                                   3.28.2-1
ii  python3-gi-cairo                             3.28.2-1

Versions of packages meld recommends:
ii  yelp  3.28.1-1

meld suggests no packages.

-- no debconf information