Merge branch 'matthiasc/for-master' into 'master'
authorMatthias Clasen <mclasen@redhat.com>
Thu, 9 Jul 2020 17:19:57 +0000 (17:19 +0000)
committerMatthias Clasen <mclasen@redhat.com>
Thu, 9 Jul 2020 17:19:57 +0000 (17:19 +0000)
css: Plug a memory leak

Closes #2921

See merge request GNOME/gtk!2219


Trivial merge