Fix all review memory leak on block transform

[ralucaStan]

There was a memory leak when previewing transform options for the All reviews block.
The preview window was fetching the reviews, but the user could move away from the transform option before the ratings loaded and the preview was shown. This PR makes sure that the preview window is still opened before updating the state of the component with the new reviews.

Fixes #4304

How to test the changes in this Pull Request:

• Install WooBlocks plugin
• Create an empty page and add the All Reviews block.
• Select the block and in the toolbar select the transform option
• Hover on one option and hover out before the preview is loaded
• Check the console is free of error warnings

Changelog

Fix memory leak when previewing transform options for the All reviews block

[github-actions]

Size Change: +174 B (0%)

Total Size: 979 kB

Filename	Size	Change
build/all-reviews.js	9.61 kB	+44 B (0%)
build/reviews-by-category.js	11.6 kB	+45 B (0%)
build/reviews-by-product.js	13.1 kB	+40 B (0%)
build/reviews-frontend.js	9.22 kB	+45 B (0%)

ℹ️ View Unchanged

Filename	Size
build/active-filters-frontend.js	8.28 kB
build/active-filters.js	7.84 kB
build/all-products-frontend.js	23.1 kB
build/all-products.js	37.3 kB
build/atomic-block-components/add-to-cart--atomic-block-components/button--atomic-block-components/image---a7e2bb9b.js	2.57 kB
build/atomic-block-components/add-to-cart--atomic-block-components/button.js	1.82 kB
build/atomic-block-components/add-to-cart--atomic-block-components/image--atomic-block-components/title.js	333 B
build/atomic-block-components/add-to-cart-frontend.js	8.64 kB
build/atomic-block-components/add-to-cart.js	7.72 kB
build/atomic-block-components/button-frontend.js	1.74 kB
build/atomic-block-components/button.js	873 B
build/atomic-block-components/category-list-frontend.js	469 B
build/atomic-block-components/category-list.js	477 B
build/atomic-block-components/image-frontend.js	1.87 kB
build/atomic-block-components/image.js	1.35 kB
build/atomic-block-components/price-frontend.js	2.08 kB
build/atomic-block-components/price.js	2.1 kB
build/atomic-block-components/rating-frontend.js	559 B
build/atomic-block-components/rating.js	566 B
build/atomic-block-components/sale-badge-frontend.js	854 B
build/atomic-block-components/sale-badge.js	866 B
build/atomic-block-components/sku-frontend.js	389 B
build/atomic-block-components/sku.js	393 B
build/atomic-block-components/stock-indicator-frontend.js	609 B
build/atomic-block-components/stock-indicator.js	610 B
build/atomic-block-components/summary-frontend.js	905 B
build/atomic-block-components/summary.js	911 B
build/atomic-block-components/tag-list-frontend.js	465 B
build/atomic-block-components/tag-list.js	471 B
build/atomic-block-components/title-frontend.js	1.44 kB
build/atomic-block-components/title.js	1.28 kB
build/attribute-filter-frontend.js	17.9 kB
build/attribute-filter.js	11.7 kB
build/blocks-checkout-editor.js	10.8 kB
build/blocks-checkout.js	20.2 kB
build/cart-frontend.js	79.2 kB
build/cart.js	45.9 kB
build/checkout-frontend.js	83.4 kB
build/checkout.js	48.2 kB
build/featured-category.js	7.39 kB
build/featured-product.js	9.55 kB
build/handpicked-products.js	6.55 kB
build/price-filter-frontend.js	14.4 kB
build/price-filter.js	9.57 kB
build/price-format.js	1.38 kB
build/product-best-sellers.js	6.73 kB
build/product-categories.js	3.38 kB
build/product-category.js	7.59 kB
build/product-new.js	6.89 kB
build/product-on-sale.js	7.23 kB
build/product-search.js	2.68 kB
build/product-tag.js	6.7 kB
build/product-top-rated.js	6.85 kB
build/products-by-attribute.js	7.82 kB
build/single-product-frontend.js	25.8 kB
build/single-product.js	9.87 kB
build/vendors--atomic-block-components/price-frontend.js	6.51 kB
build/wc-blocks-data.js	10.9 kB
build/wc-blocks-editor-style-rtl.css	14.9 kB
build/wc-blocks-editor-style.css	14.9 kB
build/wc-blocks-google-analytics.js	1.99 kB
build/wc-blocks-middleware.js	1.48 kB
build/wc-blocks-registry.js	2.75 kB
build/wc-blocks-shared-context.js	1.54 kB
build/wc-blocks-shared-hocs.js	1.75 kB
build/wc-blocks-style-rtl.css	19.2 kB
build/wc-blocks-style.css	19.2 kB
build/wc-blocks-vendors-style-rtl.css	1.05 kB
build/wc-blocks-vendors-style.css	1.05 kB
build/wc-blocks-vendors.js	240 kB
build/wc-blocks.js	3.51 kB
build/wc-payment-method-bacs.js	812 B
build/wc-payment-method-cheque.js	807 B
build/wc-payment-method-cod.js	903 B
build/wc-payment-method-paypal.js	844 B
build/wc-payment-method-stripe.js	12.3 kB
build/wc-settings.js	2.93 kB

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[opr]

Cool fix, Raluca! Works well and the code seems fine to me 👏🏼