Merge pull request #1729 from Automattic/fix/#1728

Button-2: Fix gallery block styles

button-2/editor-blocks.css

@@ -140,8 +140,8 @@ Description: Gutenberg Block Editor Styles
 
 /* List styles */
 
-.edit-post-visual-editor ul:not(.wp-block-gallery) li,
-.editor-block-list__block ul:not(.wp-block-gallery) li,
+.edit-post-visual-editor ul li:not(.blocks-gallery-item),
+.editor-block-list__block ul li:not(.blocks-gallery-item),
 .edit-post-visual-editor ol li,
 .editor-block-list__block ol li,
 .block-library-list li,