Backspace does not work in BaseExtendedPicker in projection popout windows

[sathi23]

Pull request checklist

• Addresses an existing issue: Fixes #0000
• Include a change request file using $ yarn change

Description of changes

In a popout window, users cannot use backspace to remove recipients. This is similar to this issue that was fixed a couple of months ago. This is another component that needs this fix

Focus areas to test

(optional)

[fabricteam]

📊 Bundle size report

_{🤖 This report was generated against 9fcb642d0a1947d85e81dc2db9a9d51816b7a3ae}

[size-auditor]

Asset size changes

Project	Bundle	Baseline Size	New Size	Difference
office-ui-fabric-react	fluentui-react-ExtendedPicker	88.056 kB	88.077 kB	21 bytes

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

Baseline commit: 9fcb642d0a1947d85e81dc2db9a9d51816b7a3ae (build)

[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 634d3ed:

Sandbox	Source
Fluent UI React Starter	Configuration

[fabricteam]

Perf Analysis (@fluentui/react)

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
Panel	mount	2385	1391	1000	Possible regression

All results

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
Avatar	mount	900	926	5000
BaseButton	mount	891	897	5000
Breadcrumb	mount	2650	2662	1000
ButtonNext	mount	459	450	5000
Checkbox	mount	1537	1507	5000
CheckboxBase	mount	1330	1291	5000
ChoiceGroup	mount	4763	4859	5000
ComboBox	mount	1019	993	1000
CommandBar	mount	10367	10387	1000
ContextualMenu	mount	6610	6669	1000
DefaultButton	mount	1158	1145	5000
DetailsRow	mount	3796	3791	5000
DetailsRowFast	mount	3761	3810	5000
DetailsRowNoStyles	mount	3541	3575	5000
Dialog	mount	2439	2443	1000
DocumentCardTitle	mount	154	136	1000
Dropdown	mount	3262	3290	5000
FluentProviderNext	mount	7432	7539	5000
FluentProviderWithTheme	mount	349	369	10
FluentProviderWithTheme	virtual-rerender	100	90	10
FluentProviderWithTheme	virtual-rerender-with-unmount	479	471	10
FocusTrapZone	mount	1812	1799	5000
FocusZone	mount	1859	1936	5000
IconButton	mount	1761	1796	5000
Label	mount	335	335	5000
Layer	mount	3045	3001	5000
Link	mount	481	477	5000
MakeStyles	mount	1808	1894	50000
MenuButton	mount	1478	1464	5000
MessageBar	mount	2038	2015	5000
Nav	mount	3323	3326	1000
OverflowSet	mount	1114	1126	5000
Panel	mount	2385	1391	1000	Possible regression
Persona	mount	857	853	1000
Pivot	mount	1478	1429	1000
PrimaryButton	mount	1287	1270	5000
Rating	mount	7748	7732	5000
SearchBox	mount	1378	1326	5000
Shimmer	mount	2513	2533	5000
Slider	mount	1988	2043	5000
SpinButton	mount	5095	5070	5000
Spinner	mount	438	436	5000
SplitButton	mount	3248	3195	5000
Stack	mount	489	487	5000
StackWithIntrinsicChildren	mount	1646	1657	5000
StackWithTextChildren	mount	4664	4580	5000
SwatchColorPicker	mount	10563	10483	5000
Tabs	mount	1448	1427	1000
TagPicker	mount	2643	2683	5000
TeachingBubble	mount	13572	13447	5000
Text	mount	426	424	5000
TextField	mount	1402	1407	5000
ThemeProvider	mount	1205	1210	5000
ThemeProvider	virtual-rerender	597	599	5000
ThemeProvider	virtual-rerender-with-unmount	1911	1910	5000
Toggle	mount	816	827	5000
buttonNative	mount	117	115	5000

Perf Analysis (@fluentui/react-northstar)

Perf tests with no regressions

Scenario	Current PR Ticks	Baseline Ticks	Ratio
ButtonMinimalPerf.default	182	166	1.1:1
ReactionMinimalPerf.default	396	366	1.08:1
ChatDuplicateMessagesPerf.default	306	292	1.05:1
IconMinimalPerf.default	637	606	1.05:1
AttachmentSlotsPerf.default	1108	1067	1.04:1
ButtonSlotsPerf.default	565	541	1.04:1
FlexMinimalPerf.default	295	284	1.04:1
AttachmentMinimalPerf.default	164	159	1.03:1
CardMinimalPerf.default	566	549	1.03:1
ChatWithPopoverPerf.default	382	372	1.03:1
DialogMinimalPerf.default	775	756	1.03:1
HeaderMinimalPerf.default	367	358	1.03:1
ImageMinimalPerf.default	373	362	1.03:1
InputMinimalPerf.default	1344	1301	1.03:1
ListMinimalPerf.default	522	509	1.03:1
ListWith60ListItems.default	652	634	1.03:1
PopupMinimalPerf.default	611	594	1.03:1
RadioGroupMinimalPerf.default	458	444	1.03:1
SliderMinimalPerf.default	1671	1619	1.03:1
AccordionMinimalPerf.default	156	153	1.02:1
AvatarMinimalPerf.default	196	192	1.02:1
ButtonOverridesMissPerf.default	1768	1739	1.02:1
DropdownManyItemsPerf.default	687	671	1.02:1
GridMinimalPerf.default	358	352	1.02:1
SplitButtonMinimalPerf.default	4236	4173	1.02:1
StatusMinimalPerf.default	673	658	1.02:1
TableMinimalPerf.default	410	401	1.02:1
ToolbarMinimalPerf.default	977	954	1.02:1
TreeWith60ListItems.default	182	179	1.02:1
BoxMinimalPerf.default	350	348	1.01:1
DividerMinimalPerf.default	366	363	1.01:1
DropdownMinimalPerf.default	3218	3186	1.01:1
HeaderSlotsPerf.default	755	746	1.01:1
ItemLayoutMinimalPerf.default	1223	1208	1.01:1
LayoutMinimalPerf.default	364	359	1.01:1
ListNestedPerf.default	552	548	1.01:1
LoaderMinimalPerf.default	702	693	1.01:1
ProviderMinimalPerf.default	1088	1081	1.01:1
SkeletonMinimalPerf.default	351	348	1.01:1
TextAreaMinimalPerf.default	501	498	1.01:1
CustomToolbarPrototype.default	4085	4045	1.01:1
AnimationMinimalPerf.default	401	400	1:1
ChatMinimalPerf.default	646	644	1:1
CheckboxMinimalPerf.default	2758	2764	1:1
MenuMinimalPerf.default	845	843	1:1
ProviderMergeThemesPerf.default	1715	1709	1:1
SegmentMinimalPerf.default	352	351	1:1
TableManyItemsPerf.default	1938	1938	1:1
TextMinimalPerf.default	344	344	1:1
TooltipMinimalPerf.default	1035	1039	1:1
AlertMinimalPerf.default	269	272	0.99:1
CarouselMinimalPerf.default	475	482	0.99:1
DatepickerMinimalPerf.default	5494	5531	0.99:1
EmbedMinimalPerf.default	4250	4278	0.99:1
ListCommonPerf.default	620	626	0.99:1
RefMinimalPerf.default	233	235	0.99:1
VideoMinimalPerf.default	596	599	0.99:1
MenuButtonMinimalPerf.default	1647	1673	0.98:1
TreeMinimalPerf.default	800	817	0.98:1
PortalMinimalPerf.default	180	186	0.97:1
LabelMinimalPerf.default	373	388	0.96:1
FormMinimalPerf.default	406	429	0.95:1
RosterPerf.default	1136	1200	0.95:1

[msft-fluent-ui-bot]

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