chore(doc): explain ComponentWithFormTrait getDataModelValue override #3132

Job	Run time
Check for UnBuilt JS Dist Files	1m 30s
JavaScript Coding Style	50s
coding-style-php	41s
tests-js	1m 39s
tests-php-components	3s
tests-php (8.1, Autocomplete)	39s
tests-php (8.1, Chartjs)	30s
tests-php (8.1, Cropperjs)	23s
tests-php (8.1, Dropzone)	32s
tests-php (8.1, LazyImage)	37s
tests-php (8.1, LiveComponent)	51s
tests-php (8.1, Notify)	32s
tests-php (8.1, React)	34s
tests-php (8.1, StimulusBundle)	30s
tests-php (8.1, Svelte)	33s
tests-php (8.1, TogglePassword)	29s
tests-php (8.1, Translator)	30s
tests-php (8.1, TwigComponent)	23s
tests-php (8.1, Vue)	36s
tests-php (8.2, Autocomplete)	42s
tests-php (8.2, Chartjs)	22s
tests-php (8.2, Cropperjs)	31s
tests-php (8.2, Dropzone)	21s
tests-php (8.2, LazyImage)	37s
tests-php (8.2, LiveComponent)	38s
tests-php (8.2, Notify)	34s
tests-php (8.2, React)	23s
tests-php (8.2, StimulusBundle)	29s
tests-php (8.2, Svelte)	25s
tests-php (8.2, TogglePassword)	35s
tests-php (8.2, Translator)	20s
tests-php (8.2, TwigComponent)	27s
tests-php (8.2, Vue)	38s
	19m 24s

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