A new version of Regex-Core was added to project The Inbox: http://source.squeak.org/inbox/Regex-Core-ct.62.mcz
==================== Summary ====================
Name: Regex-Core-ct.62 Author: ct Time: 23 August 2021, 5:27:14.776768 pm UUID: 3a47183c-32cd-ee44-bf87-01eab0ec2ce5 Ancestors: Regex-Core-mt.61
Fixes copying of cyclic RxmLink structures. This fixes the #testNestedQuantifiers failure from Regex-Tests-Core-ct.17.
Nevertheless, I am not sure whether this is the right solution and whether cyclic RxmLinks are actually healthy, so it might be better if someone could review this ...
=============== Diff against Regex-Core-mt.61 ===============
Item was changed: ----- Method: RxmLink>>copyUsing: (in category 'copying') ----- copyUsing: anIdentityDictionary "Copy the receiver if it's not present in the argument dictionary, or just return the previously made copy. The rest of the object graph will be copied by #postCopyUsing:."
^anIdentityDictionary at: self ifAbsent: [ "It may be tempting to use #at:ifAbsentPut: instead, but the argument block must not modify the receiver, so that wouldn't work." + (anIdentityDictionary - anIdentityDictionary at: self + put: self shallowCopy) - put: (self shallowCopy postCopyUsing: anIdentityDictionary; + yourself ]! - yourself) ]!
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