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Clean out NSNulls in removedSubnodes list (fixes #2059)#2063

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JohnEstropia wants to merge 1 commit intoTextureGroup:master from
JohnEstropia:nullRemovedSubnodes
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Clean out NSNulls in removedSubnodes list (fixes #2059) #2063
JohnEstropia wants to merge 1 commit intoTextureGroup:master from
JohnEstropia:nullRemovedSubnodes

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@JohnEstropia
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@JohnEstropia JohnEstropia commented Apr 30, 2022
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This PR fixes #2059.

Starting Swift 5.6 (Xcode 13.3), I'm seeing NSNulls populating the _removedSubnodes list and causing unrecognized selector crashes. I'm not sure where this is coming from because it only occurs in Release builds which makes debugging really hard, but I have confirmed this PR to fix the issue.

One reproducible event for me that triggers this crash is during device rotation where layoutSpecThatFits recompute the layouts. It's not an isolated case either because I see it in most screens.

If anyone can provide a better fix, please suggest.

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CLAassistant commented Apr 30, 2022
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-[NSNull _removeFromSupernodeIfEqualTo:]: unrecognized selector sent to instance

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