Comment 4 for bug 1971470

Syslog entries generated during the segfault, in case that's useful:

````
Aug 19 13:45:58 laptop kernel: [ 870.543022] owncloud[10055]: segfault at 8 ip 00007fca56f0c27e sp 00007ffe755f9af0 error 4 in libQt5Core.so.5.15.3[7fca56ca9000+30f000]
Aug 19 13:45:58 laptop kernel: [ 870.543034] Code: 48 89 50 18 48 89 f3 eb a5 0f 1f 00 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 81 ec 98 00 00 00 89 b5 78 ff ff ff <4c> 8b 6f 08 48 89 95 70 ff ff ff 64 48 8b 04 25 28 00 00 00 48 89
````