Prevent group toggling from selecting the whole group

[spmonahan]

Cherry pick of #24822

Fixes #23380

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 6eee83a:

Sandbox	Source
Fluent UI Button	Configuration
codesandbox-react-template	Configuration

[size-auditor]

Asset size changes

Project	Bundle	Baseline Size	New Size	Difference
office-ui-fabric-react	office-ui-fabric-react-DetailsList	223.745 kB	223.774 kB	29 bytes
office-ui-fabric-react	office-ui-fabric-react-ShimmeredDetailsList	233.587 kB	233.616 kB	29 bytes
office-ui-fabric-react	office-ui-fabric-react-GroupedList	124.211 kB	124.24 kB	29 bytes

 Over Tolerance (1024 B)  Over Baseline  Below Baseline  New   Removed 1 kB = 1000 B

Baseline commit: c2672fd42388d43d6c90993d4678e2ef209bbc23 (build)

[fabricteam]

Perf Analysis

No significant results to display.

All results

Scenario	Render type	7.0 Ticks	PR Ticks	Iterations	Status
BaseButton	mount	718	751	5000
Breadcrumb	mount	34113	36120	5000
Checkbox	mount	1200	1273	5000
CheckboxBase	mount	965	1062	5000
ChoiceGroup	mount	3841	3898	5000
ComboBox	mount	753	741	1000
CommandBar	mount	6630	6460	1000
ContextualMenu	mount	13674	13326	1000
DefaultButton	mount	954	959	5000
DetailsRow	mount	3013	2962	5000
DetailsRowFast	mount	3126	2875	5000
DetailsRowNoStyles	mount	3030	2793	5000
Dialog	mount	1836	1901	1000
DocumentCardTitle	mount	1548	1539	1000
Dropdown	mount	2157	2023	5000
FocusTrapZone	mount	1475	1438	5000
FocusZone	mount	1532	1556	5000
IconButton	mount	1467	1393	5000
Label	mount	250	271	5000
Layer	mount	1572	1613	5000
Link	mount	339	388	5000
MenuButton	mount	1190	1173	5000
MessageBar	mount	1686	1762	5000
Nav	mount	2739	2557	1000
OverflowSet	mount	1158	1167	5000
Panel	mount	1263	1149	1000
Persona	mount	808	759	1000
Pivot	mount	1163	1181	1000
PrimaryButton	mount	1066	1017	5000
Rating	mount	6377	6296	5000
SearchBox	mount	1063	997	5000
Shimmer	mount	2152	1957	5000
Slider	mount	1142	1278	5000
SpinButton	mount	4015	4271	5000
Spinner	mount	307	332	5000
SplitButton	mount	2565	2510	5000
Stack	mount	385	372	5000
StackWithIntrinsicChildren	mount	1340	1420	5000
StackWithTextChildren	mount	3760	3832	5000
SwatchColorPicker	mount	8592	8808	5000
TagPicker	mount	2327	2359	5000
TeachingBubble	mount	41768	41940	5000
Text	mount	317	357	5000
TextField	mount	1152	1044	5000
Toggle	mount	698	725	5000
button	mount	91	91	5000