数据库发生错误。

{
	"$schema": "https://schemas.wp.org/trunk/block.json",
	"apiVersion": 3,
	"name": "core/post-title",
	"title": "Title",
	"category": "theme",
	"description": "Displays the title of a post, page, or any other content-type.",
	"textdomain": "default",
	"usesContext": [ "postId", "postType", "queryId" ],
	"attributes": {
		"textAlign": {
			"type": "string"
		},
		"level": {
			"type": "number",
			"default": 2
		},
		"levelOptions": {
			"type": "array"
		},
		"isLink": {
			"type": "boolean",
			"default": false,
			"role": "content"
		},
		"rel": {
			"type": "string",
			"attribute": "rel",
			"default": "",
			"role": "content"
		},
		"linkTarget": {
			"type": "string",
			"default": "_self",
			"role": "content"
		}
	},
	"example": {
		"viewportWidth": 350
	},
	"supports": {
		"align": [ "wide", "full" ],
		"html": false,
		"color": {
			"gradients": true,
			"link": true,
			"__experimentalDefaultControls": {
				"background": true,
				"text": true,
				"link": true
			}
		},
		"spacing": {
			"margin": true,
			"padding": true
		},
		"typography": {
			"fontSize": true,
			"lineHeight": true,
			"__experimentalFontFamily": true,
			"__experimentalFontWeight": true,
			"__experimentalFontStyle": true,
			"__experimentalTextTransform": true,
			"__experimentalTextDecoration": true,
			"__experimentalLetterSpacing": true,
			"__experimentalDefaultControls": {
				"fontSize": true
			}
		},
		"interactivity": {
			"clientNavigation": true
		},
		"__experimentalBorder": {
			"radius": true,
			"color": true,
			"width": true,
			"style": true,
			"__experimentalDefaultControls": {
				"radius": true,
				"color": true,
				"width": true,
				"style": true
			}
		}
	},
	"style": "wp-block-post-title"
}