Allow same-page navigations on form posts #20150

Job	Run time
Build: ubuntu-latest	1m 2s
Build: windows-latest	1m 24s
Lint	1m 8s
Test (Smoke): ubuntu-latest (node@18)	3m 36s
Test (Smoke): windows-latest (node@18)	6m 8s
Test: ubuntu-latest (node@18)	4m 46s
Test (E2E): ubuntu-latest (node@18.17.1)	4m 11s
Test: ubuntu-latest (node@20.5.1)	3m 25s
Test: macos-latest (node@18)	9m 7s
Test (E2E): windows-latest (node@18.17.1)	5m 31s
Test: windows-latest (node@18.17.1)	7m 33s
	47m 51s

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