Bug#978678: gnome-calendar: segfault when clicking certain buttons

[Znoteer]

Package: gnome-calendar
Version: 3.30.1-2
Severity: important

Dear Maintainer,

   * What led up to the situation?

	I'm not sure.  One day, clicking on the "next month" arrow when in month view caused 
	app to crash.  Once in the next month (via the year view) clicking on "Today" to get 
	back to the current month also caused a segfault.  This began happening 2 3 days ago.

	I found the following in the syslog file 

	"kernel: [1335490.174368] gnome-calendar[18775]: segfault at 10 ip 00007f4b4bd989bc sp 00007ffdd50160f0 error 4 in libglib-2.0.so.0.5800.3[7f4b4bd7c000+7e000]"
	"kernel: [1335490.174377] Code: 00 48 8d 35 a6 5b 06 00 48 8d 3d 6d 16 06 00 e8 ba df 01 00 31 c0 48 83 c4 08 c3 0f 1f 00 55 48 89 fd 53 48 89 f3 48 83 ec 08 <8b> 77 10 48 8b 7f 08 e8 38 36 04 00 48 63 75 14 48 89 df 48 ba 00"

-- System Information:
Debian Release: 10.7
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-13-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-calendar depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.30.1-2
ii  gsettings-desktop-schemas                    3.28.1-1
ii  libc6                                        2.28-10
ii  libcairo2                                    1.16.0-4
ii  libdazzle-1.0-0                              3.30.2-2
ii  libecal-1.2-19                               3.30.5-1+deb10u1
ii  libedataserver-1.2-23                        3.30.5-1+deb10u1
ii  libedataserverui-1.2-2                       3.30.5-1+deb10u1
ii  libgeoclue-2-0                               2.5.2-1
ii  libglib2.0-0                                 2.58.3-2+deb10u2
ii  libgoa-1.0-0b                                3.30.1-2
ii  libgtk-3-0                                   3.24.5-1
ii  libgweather-3-15                             3.28.2-2
ii  libical3                                     3.0.4-3
ii  libpango-1.0-0                               1.42.4-8~deb10u1
ii  libpangocairo-1.0-0                          1.42.4-8~deb10u1
ii  libsoup2.4-1                                 2.64.2-2

Versions of packages gnome-calendar recommends:
ii  evolution-data-server  3.30.5-1+deb10u1

gnome-calendar suggests no packages.

-- no debconf information


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