This bug was fixed in the package gtk+3.0 - 3.24.2-2ubuntu2
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gtk+3.0 (3.24.2-2ubuntu2) disco; urgency=medium
* Cherry-pick x11-Fix-deprecation-macro-use.patch:
- Fix deprecation macro use to fix crashes seen on Xfce
gtk+3.0 (3.24.2-2ubuntu1) disco; urgency=medium
* Merge
** Also affects: gtk+3.0 (Ubuntu Cosmic)
Importance: Undecided
Status: New
** Changed in: gtk+3.0 (Ubuntu Cosmic)
Assignee: (unassigned) => Jeremy Bicha (jbicha)
** Changed in: gtk+3.0 (Ubuntu Cosmic)
Importance: Undecided => Medium
** Changed in: gtk+3.0 (Ubuntu Cosmic)
There will be a 3.24.3 release "soon" so I think it's best to wait for
that before pushing to Ubuntu 18.10.
** Tags added: upgrade-software-version
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https://bugs.launchpad.net/bugs/180823