Bug#1070749: libglib2.0-0t64: Update 2.80.0-9 to 2.80.0-10 breaks compose

[Hannah Stern]

Package: libglib2.0-0t64
Version: 2.80.0-10
Severity: important
X-Debbugs-Cc: hannah.stern at 1und1.de

Dear Maintainer,


    * What led up to the situation?
      - Upgrading 2.80.0-9 to -10 (using aptitude -t unstable)
      - (Downgrade of libglib2.0-0t64 and gir1.2-glib-2.0 to -9 fixes 
the issue)
    * What exactly did you do (or not do) that was effective (or
      ineffective)?
      Set the "<>" key (German keyboard) to compose (xmodmap), in 
combination
      with an US keyboard layout. Type compose " a in order to insert 
a-umlaut,
      in programs like gvim, thunderbird, firefox. (In xterm it works.)
    * What was the outcome of this action?
      Nothing happens
    * What outcome did you expect instead?
      Insert a-umlaut

-- System Information:
Debian Release: trixie/sid
   APT prefers stable-security
   APT policy: (550, 'stable-security'), (550, 'stable'), (500, 
'stable-updates'), (500, 'oldstable'), (99, 'unstable'), (98, 
'testing'), (50, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.7.12-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libglib2.0-0t64 depends on:
ii  libc6         2.38-8
ii  libffi8       3.4.6-1
ii  libmount1     2.40-8
ii  libpcre2-8-0  10.42-4+b1
ii  libselinux1   3.5-2+b2
ii  zlib1g        1:1.3.dfsg-3.1

Versions of packages libglib2.0-0t64 recommends:
pn  libglib2.0-data   <none>
ii  shared-mime-info  2.4-4
ii  xdg-user-dirs     0.18-1

Versions of packages libglib2.0-0t64 suggests:
pn  low-memory-monitor  <none>

-- no debconf information