fix some bugs

packages/core/src/utils/getSchema.ts

@@ -25,7 +25,14 @@ function injectExtensionAttributes(parseRule: ParseRule, extensionAttributes: Ex
   return {
     ...parseRule,
     getAttrs: node => {
-      const oldAttributes = parseRule.getAttrs ? parseRule.getAttrs(node) : {}
+      const oldAttributes = parseRule.getAttrs
+        ? parseRule.getAttrs(node)
+        : parseRule.attrs
+
+      if (oldAttributes === false) {
+        return false
+      }
+
       const newAttributes = extensionAttributes
         .filter(item => item.attribute.rendered)
         .reduce((items, item) => ({

packages/extension-text-align/index.ts

@@ -22,7 +22,7 @@ const TextAlign = createExtension({
               style: `text-align: ${attributes.textAlign}`,
             }),
             parseHTML: node => ({
-              textAlign: node.style.textAlign,
+              textAlign: node.style.textAlign || 'left',
             }),
           },
         },