[Cyberduck-trac] [Cyberduck] #11231: Crash in NSMutableParagraphStyle setParagraphStyle

[Cyberduck]

#11231: Crash in NSMutableParagraphStyle setParagraphStyle
------------------------------+-------------------------
 Reporter:  gerryvz           |         Owner:  dkocher
     Type:  defect            |        Status:  reopened
 Priority:  high              |     Milestone:  7.7.1
Component:  core              |       Version:  7.7.0
 Severity:  critical          |    Resolution:
 Keywords:  MacOS 11 Big Sur  |  Architecture:  Intel
 Platform:  macOS 11          |
------------------------------+-------------------------
Changes (by AntoineRosset):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 I found a better workaround for this macOS Big Sur bug.

 It’s related to a preferences key, added by macOS.
 It affects several macOS API.

 How to reproduce:
 {{{
 [[NSUserDefaults standardUserDefaults] setBool: YES forKey:
 @"__NSDisableSharingTextTabInstance”];
 // -> What is it? Created by old version of macOS ? and added to your
 preference file

 NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]
 init];

 // It crashes here, if __NSDisableSharingTextTabInstance was YES
 [paragraphStyle setParagraphStyle:[NSParagraphStyle
 defaultParagraphStyle]];
 }}}

 Solution: at the start of your application:

 {{{
 [[NSUserDefaults standardUserDefaults] removeObjectForKey:
 @"__NSDisableSharingTextTabInstance"];
 }}}

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Ticket URL: <https://trac.cyberduck.io/ticket/11231#comment:25>
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