我的macOS应用程序使用启用了“浮动组行”的NSTableView。这在我的测试Mac上没有问题。但是，我会定期收到用户的崩溃报告：
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'self.floatingGroupRowView should be equal to the given row view!'
是否有人知道此错误的条件？
崩溃日志的最后一部分看起来与此类似：
0 CoreFoundation 0x00007fff51db6ff3 __exceptionPreprocess + 147
1 libobjc.A.dylib 0x00007fff78992c76 objc_exception_throw + 48
2 CoreFoundation 0x00007fff51dbcda2 + [NSException raise：format：arguments：] + 98
3基础0x00007fff53ebb260 - [NSAssertionHandler handleFailureInMethod：object：file：lineNumber：description：] + 192
4 AppKit 0x00007fff4f656e9f - [NSTableRowData _updateFloatingGroupRowView：row：] + 421
5 AppKit 0x00007fff4f4245db - [NSTableRowData _updateFrameRowView：row：] + 100
6 AppKit 0x00007fff4fd03fca __48- [NSTableRowData _doAutomaticRowHeightsForRows：] _ block_invoke.1004 + 47
7 AppKit 0x00007fff4f40eae2 - [NSTableRowData enumerateAvailableRowViewsUsingBlock：] + 139
8 AppKit 0x00007fff4fd03ede - [NSTableRowData _doAutomaticRowHeightsForRows：] + 274
9 AppKit 0x00007fff4fd07157 __59- [NSTableRowData _automaticRowHeightsUpdateVisibleRowViews] _block_invoke.1494 + 141
10 AppKit 0x00007fff4fd06d05 - [NSTableRowData _keepTopRowStable：andDoWorkUntilDone：] + 535
11 AppKit 0x00007fff4fd07075 - [NSTableRowData _automaticRowHeightsUpdateVisibleRowViews] + 161
12 AppKit 0x00007fff4f415d85 - [NSTableRowData updateVisibleRowViews] + 261
13 AppKit 0x00007fff4f5bf24e - [NSTableRowData prepareContentInRect：] + 106
14 AppKit 0x00007fff4f5bed46 - [NSTableView prepareContentInRect：] + 303
15 AppKit 0x00007fff4fbbf7b1 __38- [NSView _pullInExtraTilesForOverdraw] _block_invoke + 562
16 AppKit 0x00007fff4f484a19 - [NSView _performWorkOnTilesFromRect：renderedContentRect：maximumRect：scrollVelocity：handler：] + 1544
17 AppKit 0x00007fff4f4841f2 - [NSView _pullInExtraTilesForOverdraw] + 854
18 AppKit 0x00007fff4f483e6d - [NSView _doIdlePrefetch] + 37
不幸的是，这些崩溃日志并未始终指向我代码中的某一特定行。